402010231 has 12 divisors (see below), whose sum is σ = 462256176. Its totient is φ = 342480960.

The previous prime is 402010183. The next prime is 402010243. The reversal of 402010231 is 132010204.

It is not a de Polignac number, because 402010231 - 2⁹ = 402009719 is a prime.

It is a super-2 number, since 2×402010231² = 323224451657346722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402010331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228451 + ... + 230203.

It is an arithmetic number, because the mean of its divisors is an integer number (38521348).

Almost surely, 2^402010231 is an apocalyptic number.

402010231 is a deficient number, since it is larger than the sum of its proper divisors (60245945).

402010231 is an equidigital number, since it uses as much as digits as its factorization.

402010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 402010231 is about 20050.1927920906. The cubic root of 402010231 is about 738.0385301916.

Adding to 402010231 its reverse (132010204), we get a palindrome (534020435).

The spelling of 402010231 in words is "four hundred two million, ten thousand, two hundred thirty-one".