45398020 has 12 divisors (see below), whose sum is σ = 95335884. Its totient is φ = 18159200.

The previous prime is 45397987. The next prime is 45398027. The reversal of 45398020 is 2089354.

It can be written as a sum of positive squares in 2 ways, for example, as 32993536 + 12404484 = 5744^2 + 3522^2 .

It is not an unprimeable number, because it can be changed into a prime (45398027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134931 + ... + 1134970.

It is an arithmetic number, because the mean of its divisors is an integer number (7944657).

Almost surely, 2^45398020 is an apocalyptic number.

It is an amenable number.

45398020 is an abundant number, since it is smaller than the sum of its proper divisors (49937864).

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

45398020 is a wasteful number, since it uses less digits than its factorization.

45398020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269910 (or 2269908 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 45398020 is about 6737.8052806533. The cubic root of 45398020 is about 356.7349312761.

The spelling of 45398020 in words is "forty-five million, three hundred ninety-eight thousand, twenty".