402124399 has 8 divisors (see below), whose sum is σ = 416651760. Its totient is φ = 387789696.

The previous prime is 402124397. The next prime is 402124403. The reversal of 402124399 is 993421204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402124399 - 2¹ = 402124397 is a prime.

It is a super-2 number, since 2×402124399² = 323408064542222402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402124391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43909 + ... + 52270.

It is an arithmetic number, because the mean of its divisors is an integer number (52081470).

Almost surely, 2^402124399 is an apocalyptic number.

402124399 is a deficient number, since it is larger than the sum of its proper divisors (14527361).

402124399 is a wasteful number, since it uses less digits than its factorization.

402124399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96329.

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

The square root of 402124399 is about 20053.0396449017. The cubic root of 402124399 is about 738.1083894483.

The spelling of 402124399 in words is "four hundred two million, one hundred twenty-four thousand, three hundred ninety-nine".