45942399 has 24 divisors (see below), whose sum is σ = 70302960. Its totient is φ = 28829952.

The previous prime is 45942383. The next prime is 45942433. The reversal of 45942399 is 99324954.

It is a happy number.

It is not a de Polignac number, because 45942399 - 2⁴ = 45942383 is a prime.

It is a super-2 number, since 2×45942399² = 4221408051750402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45942499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28807 + ... + 30359.

It is an arithmetic number, because the mean of its divisors is an integer number (2929290).

Almost surely, 2^45942399 is an apocalyptic number.

45942399 is a deficient number, since it is larger than the sum of its proper divisors (24360561).

45942399 is a wasteful number, since it uses less digits than its factorization.

45942399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1748 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 45942399 is about 6778.0822509025. The cubic root of 45942399 is about 358.1551687349.

The spelling of 45942399 in words is "forty-five million, nine hundred forty-two thousand, three hundred ninety-nine".