402951 has 8 divisors (see below), whose sum is σ = 568944. Its totient is φ = 252800.

The previous prime is 402949. The next prime is 402991. The reversal of 402951 is 159204.

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 402951 - 2¹ = 402949 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402951.

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 in 7 ways as a sum of consecutive naturals, for example, 3900 + ... + 4001.

It is an arithmetic number, because the mean of its divisors is an integer number (71118).

2⁴⁰²⁹⁵¹ is an apocalyptic number.

402951 is a deficient number, since it is larger than the sum of its proper divisors (165993).

402951 is a wasteful number, since it uses less digits than its factorization.

402951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 402951 is about 634.7842153047. The cubic root of 402951 is about 73.8613791557.

The spelling of 402951 in words is "four hundred two thousand, nine hundred fifty-one".