45400993 has 4 divisors (see below), whose sum is σ = 49528368. Its totient is φ = 41273620.

The previous prime is 45400973. The next prime is 45401039. The reversal of 45400993 is 39900454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45400993 - 2¹⁷ = 45269921 is a prime.

It is a super-2 number, since 2×45400993² = 4122500330772098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45400903) 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, 2063671 + ... + 2063692.

It is an arithmetic number, because the mean of its divisors is an integer number (12382092).

Almost surely, 2^45400993 is an apocalyptic number.

It is an amenable number.

45400993 is a deficient number, since it is larger than the sum of its proper divisors (4127375).

45400993 is a wasteful number, since it uses less digits than its factorization.

45400993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127374.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 45400993 is about 6738.0258978428. The cubic root of 45400993 is about 356.7427183250.

The spelling of 45400993 in words is "forty-five million, four hundred thousand, nine hundred ninety-three".