43254240 has 96 divisors (see below), whose sum is σ = 137803680. Its totient is φ = 11403264.

The previous prime is 43254229. The next prime is 43254251. The reversal of 43254240 is 4245234.

It is an interprime number because it is at equal distance from previous prime (43254229) and next prime (43254251).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 43254240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46096 + ... + 47024.

It is an arithmetic number, because the mean of its divisors is an integer number (1435455).

Almost surely, 2^43254240 is an apocalyptic number.

43254240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43254240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68901840).

43254240 is an abundant number, since it is smaller than the sum of its proper divisors (94549440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43254240 is a wasteful number, since it uses less digits than its factorization.

43254240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 43254240 is about 6576.7955723133. The cubic root of 43254240 is about 351.0289178373.

Adding to 43254240 its reverse (4245234), we get a palindrome (47499474).

The spelling of 43254240 in words is "forty-three million, two hundred fifty-four thousand, two hundred forty".