45831540 has 24 divisors (see below), whose sum is σ = 128328480. Its totient is φ = 12221728.

The previous prime is 45831523. The next prime is 45831587. The reversal of 45831540 is 4513854.

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 = 45831498 and 45831507.

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, 381870 + ... + 381989.

It is an arithmetic number, because the mean of its divisors is an integer number (5347020).

Almost surely, 2^45831540 is an apocalyptic number.

It is an amenable number.

45831540 is an abundant number, since it is smaller than the sum of its proper divisors (82496940).

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

45831540 is a wasteful number, since it uses less digits than its factorization.

45831540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763871 (or 763869 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 45831540 is about 6769.8995561234. The cubic root of 45831540 is about 357.8668605967.

The spelling of 45831540 in words is "forty-five million, eight hundred thirty-one thousand, five hundred forty".