402941268 has 36 divisors (see below), whose sum is σ = 1019365620. Its totient is φ = 134205696.

The previous prime is 402941263. The next prime is 402941299. The reversal of 402941268 is 862149204.

It can be written as a sum of positive squares in 2 ways, for example, as 246741264 + 156200004 = 15708^2 + 12498^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402941263) 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, 49846 + ... + 57362.

Almost surely, 2^402941268 is an apocalyptic number.

It is an amenable number.

402941268 is an abundant number, since it is smaller than the sum of its proper divisors (616424352).

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

402941268 is a wasteful number, since it uses less digits than its factorization.

402941268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016 (or 9011 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 402941268 is about 20073.3970219293. The cubic root of 402941268 is about 738.6078452200.

The spelling of 402941268 in words is "four hundred two million, nine hundred forty-one thousand, two hundred sixty-eight".