45477078 has 8 divisors (see below), whose sum is σ = 90954168. Its totient is φ = 15159024.

The previous prime is 45477073. The next prime is 45477079. The reversal of 45477078 is 87077454.

It is a sphenic number, since it is the product of 3 distinct primes.

45477078 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45477071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789751 + ... + 3789762.

It is an arithmetic number, because the mean of its divisors is an integer number (11369271).

Almost surely, 2^45477078 is an apocalyptic number.

45477078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45477078 is a wasteful number, since it uses less digits than its factorization.

45477078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579518.

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 45477078 is about 6743.6694758863. The cubic root of 45477078 is about 356.9418888694.

The spelling of 45477078 in words is "forty-five million, four hundred seventy-seven thousand, seventy-eight".