45942638 has 32 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 18516960.

The previous prime is 45942613. The next prime is 45942643. The reversal of 45942638 is 83624954.

It is a super-2 number, since 2×45942638² = 4221451972798088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45942595 and 45942604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18473 + ... + 20811.

It is an arithmetic number, because the mean of its divisors is an integer number (2611440).

Almost surely, 2^45942638 is an apocalyptic number.

45942638 is a deficient number, since it is larger than the sum of its proper divisors (37623442).

45942638 is a wasteful number, since it uses less digits than its factorization.

45942638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432.

The product of its digits is 207360, while the sum is 41.

The square root of 45942638 is about 6778.0998812352. The cubic root of 45942638 is about 358.1557897947.

It can be divided in two parts, 45942 and 638, that multiplied together give a triangular number (29310996 = T₇₆₅₆).

The spelling of 45942638 in words is "forty-five million, nine hundred forty-two thousand, six hundred thirty-eight".