402775241 has 32 divisors (see below), whose sum is σ = 472227840. Its totient is φ = 342759120.

The previous prime is 402775223. The next prime is 402775291. The reversal of 402775241 is 142577204.

It is a de Polignac number, because none of the positive numbers 2^k-402775241 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402775198 and 402775207.

It is not an unprimeable number, because it can be changed into a prime (402775291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1806056 + ... + 1806278.

It is an arithmetic number, because the mean of its divisors is an integer number (14757120).

Almost surely, 2^402775241 is an apocalyptic number.

It is an amenable number.

402775241 is a deficient number, since it is larger than the sum of its proper divisors (69452599).

402775241 is a wasteful number, since it uses less digits than its factorization.

402775241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 402775241 is about 20069.2610975093. The cubic root of 402775241 is about 738.5063865204.

The spelling of 402775241 in words is "four hundred two million, seven hundred seventy-five thousand, two hundred forty-one".