45398998 has 4 divisors (see below), whose sum is σ = 68098500. Its totient is φ = 22699498.

The previous prime is 45398953. The next prime is 45399017. The reversal of 45398998 is 89989354.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×45398998² = 4122138038808008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11349748 + ... + 11349751.

It is an arithmetic number, because the mean of its divisors is an integer number (17024625).

Almost surely, 2^45398998 is an apocalyptic number.

45398998 is a deficient number, since it is larger than the sum of its proper divisors (22699502).

45398998 is a wasteful number, since it uses less digits than its factorization.

45398998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22699501.

The product of its digits is 2799360, while the sum is 55.

The square root of 45398998 is about 6737.8778558237. The cubic root of 45398998 is about 356.7374929463.

The spelling of 45398998 in words is "forty-five million, three hundred ninety-eight thousand, nine hundred ninety-eight".