45431780 has 24 divisors (see below), whose sum is σ = 95836608. Its totient is φ = 18090848.

The previous prime is 45431761. The next prime is 45431791. The reversal of 45431780 is 8713454.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464 + ... + 9543.

It is an arithmetic number, because the mean of its divisors is an integer number (3993192).

Almost surely, 2^45431780 is an apocalyptic number.

It is an amenable number.

45431780 is an abundant number, since it is smaller than the sum of its proper divisors (50404828).

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

45431780 is a wasteful number, since it uses less digits than its factorization.

45431780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10243 (or 10241 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 45431780 is about 6740.3100818879. The cubic root of 45431780 is about 356.8233373871.

The spelling of 45431780 in words is "forty-five million, four hundred thirty-one thousand, seven hundred eighty".