45878631 has 32 divisors (see below), whose sum is σ = 68257728. Its totient is φ = 27279360.

The previous prime is 45878621. The next prime is 45878639. The reversal of 45878631 is 13687854.

It is not a de Polignac number, because 45878631 - 2¹³ = 45870439 is a prime.

It is a super-2 number, since 2×45878631² = 4209697564868322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45878639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77071 + ... + 77663.

It is an arithmetic number, because the mean of its divisors is an integer number (2133054).

Almost surely, 2^45878631 is an apocalyptic number.

45878631 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45878631 is a deficient number, since it is larger than the sum of its proper divisors (22379097).

45878631 is a wasteful number, since it uses less digits than its factorization.

45878631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its digits is 161280, while the sum is 42.

The square root of 45878631 is about 6773.3766320795. The cubic root of 45878631 is about 357.9893856803.

The spelling of 45878631 in words is "forty-five million, eight hundred seventy-eight thousand, six hundred thirty-one".