402994 has 4 divisors (see below), whose sum is σ = 604494. Its totient is φ = 201496.

The previous prime is 402991. The next prime is 403001. The reversal of 402994 is 499204.

402994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 375769 + 27225 = 613^2 + 165^2 .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100747 + ... + 100750.

2⁴⁰²⁹⁹⁴ is an apocalyptic number.

402994 is a deficient number, since it is larger than the sum of its proper divisors (201500).

402994 is a wasteful number, since it uses less digits than its factorization.

402994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201499.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 402994 is about 634.8180841785. The cubic root of 402994 is about 73.8640063786.

The spelling of 402994 in words is "four hundred two thousand, nine hundred ninety-four".