45000240 has 80 divisors (see below), whose sum is σ = 141011808. Its totient is φ = 11870208.

The previous prime is 45000239. The next prime is 45000271. The reversal of 45000240 is 4200054.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 22314 + ... + 24246.

Almost surely, 2^45000240 is an apocalyptic number.

45000240 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 45000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70505904).

45000240 is an abundant number, since it is smaller than the sum of its proper divisors (96011568).

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

45000240 is a wasteful number, since it uses less digits than its factorization.

45000240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2040 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 45000240 is about 6708.2218210193. The cubic root of 45000240 is about 355.6899627845.

Adding to 45000240 its reverse (4200054), we get a palindrome (49200294).

The spelling of 45000240 in words is "forty-five million, two hundred forty", and thus it is an aban number.