45452540 has 24 divisors (see below), whose sum is σ = 109086432. Its totient is φ = 15583680.

The previous prime is 45452527. The next prime is 45452569. The reversal of 45452540 is 4525454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162191 + ... + 162470.

It is an arithmetic number, because the mean of its divisors is an integer number (4545268).

Almost surely, 2^45452540 is an apocalyptic number.

It is an amenable number.

45452540 is an abundant number, since it is smaller than the sum of its proper divisors (63633892).

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

45452540 is a wasteful number, since it uses less digits than its factorization.

45452540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324677 (or 324675 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 45452540 is about 6741.8498945023. The cubic root of 45452540 is about 356.8776791164.

Adding to 45452540 its reverse (4525454), we get a palindrome (49977994).

The spelling of 45452540 in words is "forty-five million, four hundred fifty-two thousand, five hundred forty".