124402399 has 18 divisors (see below), whose sum is σ = 140722512. Its totient is φ = 109890000.

The previous prime is 124402393. The next prime is 124402417. The reversal of 124402399 is 993204421.

It is not a de Polignac number, because 124402399 - 2³ = 124402391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124402391) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 165274 + ... + 166024.

Almost surely, 2^124402399 is an apocalyptic number.

124402399 is a deficient number, since it is larger than the sum of its proper divisors (16320113).

124402399 is an equidigital number, since it uses as much as digits as its factorization.

124402399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 124402399 is about 11153.5823393204. The cubic root of 124402399 is about 499.2019254986.

The spelling of 124402399 in words is "one hundred twenty-four million, four hundred two thousand, three hundred ninety-nine".