45642678 has 16 divisors (see below), whose sum is σ = 92648640. Its totient is φ = 14987016.

The previous prime is 45642659. The next prime is 45642679. The reversal of 45642678 is 87624654.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45642679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56368 + ... + 57171.

It is an arithmetic number, because the mean of its divisors is an integer number (5790540).

Almost surely, 2^45642678 is an apocalyptic number.

45642678 is an abundant number, since it is smaller than the sum of its proper divisors (47005962).

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

45642678 is a wasteful number, since it uses less digits than its factorization.

45642678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113611.

The product of its digits is 322560, while the sum is 42.

The square root of 45642678 is about 6755.9365005897. The cubic root of 45642678 is about 357.3746195041.

It can be divided in two parts, 456 and 42678, that added together give a palindrome (43134).

The spelling of 45642678 in words is "forty-five million, six hundred forty-two thousand, six hundred seventy-eight".