402251233 has 4 divisors (see below), whose sum is σ = 402641668. Its totient is φ = 401860800.

The previous prime is 402251207. The next prime is 402251249. The reversal of 402251233 is 332152204.

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 398122209 + 4129024 = 19953^2 + 2032^2 .

It is a cyclic number.

It is not a de Polignac number, because 402251233 - 2⁹ = 402250721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402251273) 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, 193668 + ... + 195733.

It is an arithmetic number, because the mean of its divisors is an integer number (100660417).

Almost surely, 2^402251233 is an apocalyptic number.

It is an amenable number.

402251233 is a deficient number, since it is larger than the sum of its proper divisors (390435).

402251233 is a wasteful number, since it uses less digits than its factorization.

402251233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390434.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 402251233 is about 20056.2018587768. The cubic root of 402251233 is about 738.1859835119.

It can be divided in two parts, 4022 and 51233, that added together give a palindrome (55255).

The spelling of 402251233 in words is "four hundred two million, two hundred fifty-one thousand, two hundred thirty-three".