402265266 has 16 divisors (see below), whose sum is σ = 866417664. Its totient is φ = 123773904.

The previous prime is 402265249. The next prime is 402265307. The reversal of 402265266 is 662562204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2578546 + ... + 2578701.

It is an arithmetic number, because the mean of its divisors is an integer number (54151104).

Almost surely, 2^402265266 is an apocalyptic number.

402265266 is an abundant number, since it is smaller than the sum of its proper divisors (464152398).

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

402265266 is a wasteful number, since it uses less digits than its factorization.

402265266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157265.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 402265266 is about 20056.5516976374. The cubic root of 402265266 is about 738.1945675697.

The spelling of 402265266 in words is "four hundred two million, two hundred sixty-five thousand, two hundred sixty-six".