45399458 has 16 divisors (see below), whose sum is σ = 74027520. Its totient is φ = 20756496.

The previous prime is 45399449. The next prime is 45399517. The reversal of 45399458 is 85499354.

It is a super-2 number, since 2×45399458² = 4122221573387528, which contains 22 as substring.

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, 5378 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^45399458 is an apocalyptic number.

45399458 is a deficient number, since it is larger than the sum of its proper divisors (28628062).

45399458 is a wasteful number, since it uses less digits than its factorization.

45399458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16441.

The product of its digits is 777600, while the sum is 47.

The square root of 45399458 is about 6737.9119911142. The cubic root of 45399458 is about 356.7386978091.

The spelling of 45399458 in words is "forty-five million, three hundred ninety-nine thousand, four hundred fifty-eight".