402610023 has 6 divisors (see below), whose sum is σ = 581547824. Its totient is φ = 268406676.

The previous prime is 402610003. The next prime is 402610027. The reversal of 402610023 is 320016204.

It is a happy number.

It is not a de Polignac number, because 402610023 - 2⁶ = 402609959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402609978 and 402610005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402610027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22367215 + ... + 22367232.

Almost surely, 2^402610023 is an apocalyptic number.

402610023 is a deficient number, since it is larger than the sum of its proper divisors (178937801).

402610023 is a wasteful number, since it uses less digits than its factorization.

402610023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44734453 (or 44734450 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 402610023 is about 20065.1444799184. The cubic root of 402610023 is about 738.4053945171.

Adding to 402610023 its reverse (320016204), we get a palindrome (722626227).

The spelling of 402610023 in words is "four hundred two million, six hundred ten thousand, twenty-three".