402051233 has 4 divisors (see below), whose sum is σ = 402600468. Its totient is φ = 401502000.

The previous prime is 402051227. The next prime is 402051257. The reversal of 402051233 is 332150204.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 299393809 + 102657424 = 17303^2 + 10132^2 .

It is a cyclic number.

It is not a de Polignac number, because 402051233 - 2²² = 397856929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402051263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273518 + ... + 274983.

It is an arithmetic number, because the mean of its divisors is an integer number (100650117).

Almost surely, 2^402051233 is an apocalyptic number.

It is an amenable number.

402051233 is a deficient number, since it is larger than the sum of its proper divisors (549235).

402051233 is an equidigital number, since it uses as much as digits as its factorization.

402051233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549234.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 402051233 is about 20051.2152499543. The cubic root of 402051233 is about 738.0636207861.

The spelling of 402051233 in words is "four hundred two million, fifty-one thousand, two hundred thirty-three".