402542262 has 24 divisors (see below), whose sum is σ = 872550120. Its totient is φ = 134123040.

The previous prime is 402542249. The next prime is 402542279. The reversal of 402542262 is 262245204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67914 + ... + 73602.

It is an arithmetic number, because the mean of its divisors is an integer number (36356255).

Almost surely, 2^402542262 is an apocalyptic number.

402542262 is an abundant number, since it is smaller than the sum of its proper divisors (470007858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402542262 is a wasteful number, since it uses less digits than its factorization.

402542262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9628 (or 9625 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 402542262 is about 20063.4558837704. The cubic root of 402542262 is about 738.3639665907.

Adding to 402542262 its reverse (262245204), we get a palindrome (664787466).

The spelling of 402542262 in words is "four hundred two million, five hundred forty-two thousand, two hundred sixty-two".