45932778 has 32 divisors (see below), whose sum is σ = 102309120. Its totient is φ = 15275520.

The previous prime is 45932773. The next prime is 45932779. The reversal of 45932778 is 87723954.

It is not an unprimeable number, because it can be changed into a prime (45932773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33951 + ... + 35277.

It is an arithmetic number, because the mean of its divisors is an integer number (3197160).

Almost surely, 2^45932778 is an apocalyptic number.

45932778 is an abundant number, since it is smaller than the sum of its proper divisors (56376342).

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

45932778 is a wasteful number, since it uses less digits than its factorization.

45932778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979 (or 1973 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 45932778 is about 6777.3724997229. The cubic root of 45932778 is about 358.1301660393.

The spelling of 45932778 in words is "forty-five million, nine hundred thirty-two thousand, seven hundred seventy-eight".