402157 has 8 divisors (see below), whose sum is σ = 466496. Its totient is φ = 339552.

The previous prime is 402139. The next prime is 402197. The reversal of 402157 is 751204.

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 402157 - 2⁷ = 402029 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 (402107) 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, 118 + ... + 904.

It is an arithmetic number, because the mean of its divisors is an integer number (58312).

2⁴⁰²¹⁵⁷ is an apocalyptic number.

It is an amenable number.

402157 is a deficient number, since it is larger than the sum of its proper divisors (64339).

402157 is an equidigital number, since it uses as much as digits as its factorization.

402157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 402157 is about 634.1584975383. The cubic root of 402157 is about 73.8128335532.

It can be divided in two parts, 40 and 2157, that added together give a cube (2197 = 13³).

The spelling of 402157 in words is "four hundred two thousand, one hundred fifty-seven".