45434778 has 32 divisors (see below), whose sum is σ = 99325440. Its totient is φ = 13793280.

The previous prime is 45434771. The next prime is 45434819. The reversal of 45434778 is 87743454.

It is not an unprimeable number, because it can be changed into a prime (45434771) 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, 4023 + ... + 10346.

It is an arithmetic number, because the mean of its divisors is an integer number (3103920).

Almost surely, 2^45434778 is an apocalyptic number.

45434778 is an abundant number, since it is smaller than the sum of its proper divisors (53890662).

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

45434778 is a wasteful number, since it uses less digits than its factorization.

45434778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14422.

The product of its digits is 376320, while the sum is 42.

The square root of 45434778 is about 6740.5324715485. The cubic root of 45434778 is about 356.8311860255.

The spelling of 45434778 in words is "forty-five million, four hundred thirty-four thousand, seven hundred seventy-eight".