402433031 has 48 divisors (see below), whose sum is σ = 557706240. Its totient is φ = 285405120.

The previous prime is 402433019. The next prime is 402433033. The reversal of 402433031 is 130334204.

It is not a de Polignac number, because 402433031 - 2⁶ = 402432967 is a prime.

It is a super-2 number, since 2×402433031² = 323904688879693922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402432994 and 402433012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402433033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 553190 + ... + 553916.

It is an arithmetic number, because the mean of its divisors is an integer number (11618880).

Almost surely, 2^402433031 is an apocalyptic number.

402433031 is a deficient number, since it is larger than the sum of its proper divisors (155273209).

402433031 is a wasteful number, since it uses less digits than its factorization.

402433031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402433031 is about 20060.7335608646. The cubic root of 402433031 is about 738.2971748206.

Adding to 402433031 its reverse (130334204), we get a palindrome (532767235).

The spelling of 402433031 in words is "four hundred two million, four hundred thirty-three thousand, thirty-one".