402152439 has 8 divisors (see below), whose sum is σ = 577449712. Its totient is φ = 247478400.

The previous prime is 402152417. The next prime is 402152467. The reversal of 402152439 is 934251204.

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

It is not a de Polignac number, because 402152439 - 2⁸ = 402152183 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 (402152489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5155762 + ... + 5155839.

It is an arithmetic number, because the mean of its divisors is an integer number (72181214).

Almost surely, 2^402152439 is an apocalyptic number.

402152439 is a deficient number, since it is larger than the sum of its proper divisors (175297273).

402152439 is a wasteful number, since it uses less digits than its factorization.

402152439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10311617.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 402152439 is about 20053.7387785919. The cubic root of 402152439 is about 738.1255450667.

The spelling of 402152439 in words is "four hundred two million, one hundred fifty-two thousand, four hundred thirty-nine".