45210778 has 8 divisors (see below), whose sum is σ = 70764768. Its totient is φ = 21622524.

The previous prime is 45210773. The next prime is 45210787. The reversal of 45210778 is 87701254.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (45210773) 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, 491376 + ... + 491467.

It is an arithmetic number, because the mean of its divisors is an integer number (8845596).

Almost surely, 2^45210778 is an apocalyptic number.

45210778 is a deficient number, since it is larger than the sum of its proper divisors (25553990).

45210778 is a wasteful number, since it uses less digits than its factorization.

45210778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982868.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 45210778 is about 6723.8960432178. The cubic root of 45210778 is about 356.2438099673.

The spelling of 45210778 in words is "forty-five million, two hundred ten thousand, seven hundred seventy-eight".