45653240 has 32 divisors (see below), whose sum is σ = 103001760. Its totient is φ = 18211200.

The previous prime is 45653191. The next prime is 45653249. The reversal of 45653240 is 4235654.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45653249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15485 + ... + 18195.

It is an arithmetic number, because the mean of its divisors is an integer number (3218805).

Almost surely, 2^45653240 is an apocalyptic number.

45653240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45653240 is an abundant number, since it is smaller than the sum of its proper divisors (57348520).

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

45653240 is a wasteful number, since it uses less digits than its factorization.

45653240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 45653240 is about 6756.7181382680. The cubic root of 45653240 is about 357.4021836157.

Adding to 45653240 its reverse (4235654), we get a palindrome (49888894).

The spelling of 45653240 in words is "forty-five million, six hundred fifty-three thousand, two hundred forty".