45398942 has 32 divisors (see below), whose sum is σ = 78382080. Its totient is φ = 19578240.

The previous prime is 45398933. The next prime is 45398953. The reversal of 45398942 is 24989354.

It is a super-2 number, since 2×45398942² = 4122127869438728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45398893 and 45398902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18893 + ... + 21159.

It is an arithmetic number, because the mean of its divisors is an integer number (2449440).

Almost surely, 2^45398942 is an apocalyptic number.

45398942 is a deficient number, since it is larger than the sum of its proper divisors (32983138).

45398942 is a wasteful number, since it uses less digits than its factorization.

45398942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336.

The product of its digits is 311040, while the sum is 44.

The square root of 45398942 is about 6737.8737002114. The cubic root of 45398942 is about 356.7373462668.

The spelling of 45398942 in words is "forty-five million, three hundred ninety-eight thousand, nine hundred forty-two".