45400393 has 2 divisors, whose sum is σ = 45400394. Its totient is φ = 45400392.

The previous prime is 45400373. The next prime is 45400403. The reversal of 45400393 is 39300454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 10259209 = 5928^2 + 3203^2 .

It is a cyclic number.

It is not a de Polignac number, because 45400393 - 2⁵ = 45400361 is a prime.

It is a super-2 number, since 2×45400393² = 4122391369108898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45400373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22700196 + 22700197.

It is an arithmetic number, because the mean of its divisors is an integer number (22700197).

Almost surely, 2^45400393 is an apocalyptic number.

It is an amenable number.

45400393 is a deficient number, since it is larger than the sum of its proper divisors (1).

45400393 is an equidigital number, since it uses as much as digits as its factorization.

45400393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 45400393 is about 6737.9813742693. The cubic root of 45400393 is about 356.7411467986.

The spelling of 45400393 in words is "forty-five million, four hundred thousand, three hundred ninety-three".