402339271 has 8 divisors (see below), whose sum is σ = 412930224. Its totient is φ = 391859520.

The previous prime is 402339251. The next prime is 402339293. The reversal of 402339271 is 172933204.

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 402339271 - 2⁷ = 402339143 is a prime.

It is a super-2 number, since 2×402339271² = 323753777977622882, 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 (402339211) 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, 20445 + ... + 34966.

It is an arithmetic number, because the mean of its divisors is an integer number (51616278).

Almost surely, 2^402339271 is an apocalyptic number.

402339271 is a deficient number, since it is larger than the sum of its proper divisors (10590953).

402339271 is a wasteful number, since it uses less digits than its factorization.

402339271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55601.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 402339271 is about 20058.3965211579. The cubic root of 402339271 is about 738.2398335039.

The spelling of 402339271 in words is "four hundred two million, three hundred thirty-nine thousand, two hundred seventy-one".