45779890 has 64 divisors (see below), whose sum is σ = 94493952. Its totient is φ = 15840000.

The previous prime is 45779879. The next prime is 45779897. The reversal of 45779890 is 9897754.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45779897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182265 + ... + 182515.

It is an arithmetic number, because the mean of its divisors is an integer number (1476468).

Almost surely, 2^45779890 is an apocalyptic number.

45779890 is an abundant number, since it is smaller than the sum of its proper divisors (48714062).

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

45779890 is a wasteful number, since it uses less digits than its factorization.

45779890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 45779890 is about 6766.0838008408. The cubic root of 45779890 is about 357.7323769989.

The spelling of 45779890 in words is "forty-five million, seven hundred seventy-nine thousand, eight hundred ninety".