402874 has 4 divisors (see below), whose sum is σ = 604314. Its totient is φ = 201436.

The previous prime is 402869. The next prime is 402881. The reversal of 402874 is 478204.

402874 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 378225 + 24649 = 615^2 + 157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100717 + ... + 100720.

2⁴⁰²⁸⁷⁴ is an apocalyptic number.

402874 is a deficient number, since it is larger than the sum of its proper divisors (201440).

402874 is a wasteful number, since it uses less digits than its factorization.

402874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201439.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 402874 is about 634.7235618756. The cubic root of 402874 is about 73.8566741266.

It can be divided in two parts, 40 and 2874, that multiplied together give a triangular number (114960 = T₄₇₉).

The spelling of 402874 in words is "four hundred two thousand, eight hundred seventy-four".