45400297 has 4 divisors (see below), whose sum is σ = 45468036. Its totient is φ = 45332560.

The previous prime is 45400259. The next prime is 45400309. The reversal of 45400297 is 79200454.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34351321 + 11048976 = 5861^2 + 3324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45400297 is a prime.

It is a super-2 number, since 2×45400297² = 4122373935376418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45400097) 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, 32854 + ... + 34207.

It is an arithmetic number, because the mean of its divisors is an integer number (11367009).

Almost surely, 2^45400297 is an apocalyptic number.

It is an amenable number.

45400297 is a deficient number, since it is larger than the sum of its proper divisors (67739).

45400297 is an equidigital number, since it uses as much as digits as its factorization.

45400297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67738.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 45400297 is about 6737.9742504702. The cubic root of 45400297 is about 356.7408953531.

The spelling of 45400297 in words is "forty-five million, four hundred thousand, two hundred ninety-seven".