45398798 has 16 divisors (see below), whose sum is σ = 70730880. Its totient is φ = 21837816.

The previous prime is 45398779. The next prime is 45398867. The reversal of 45398798 is 89789354.

It is a super-2 number, since 2×45398798² = 4122101719689608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 1823 + ... + 9701.

It is an arithmetic number, because the mean of its divisors is an integer number (4420680).

Almost surely, 2^45398798 is an apocalyptic number.

45398798 is a deficient number, since it is larger than the sum of its proper divisors (25332082).

45398798 is a wasteful number, since it uses less digits than its factorization.

45398798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991.

The product of its digits is 2177280, while the sum is 53.

The square root of 45398798 is about 6737.8630143392. The cubic root of 45398798 is about 356.7369690903.

The spelling of 45398798 in words is "forty-five million, three hundred ninety-eight thousand, seven hundred ninety-eight".