45452640 has 48 divisors (see below), whose sum is σ = 143177328. Its totient is φ = 12120576.

The previous prime is 45452639. The next prime is 45452651. The reversal of 45452640 is 4625454.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45452598 and 45452607.

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, 46867 + ... + 47826.

It is an arithmetic number, because the mean of its divisors is an integer number (2982861).

Almost surely, 2^45452640 is an apocalyptic number.

45452640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45452640 is an abundant number, since it is smaller than the sum of its proper divisors (97724688).

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

45452640 is a wasteful number, since it uses less digits than its factorization.

45452640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94711 (or 94703 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 45452640 is about 6741.8573108603. The cubic root of 45452640 is about 356.8779408380.

The spelling of 45452640 in words is "forty-five million, four hundred fifty-two thousand, six hundred forty".