402796357 has 4 divisors (see below), whose sum is σ = 404363916. Its totient is φ = 401228800.

The previous prime is 402796321. The next prime is 402796379. The reversal of 402796357 is 753697204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 262634436 + 140161921 = 16206^2 + 11839^2 .

It is a cyclic number.

It is not a de Polignac number, because 402796357 - 2¹¹ = 402794309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403796357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783394 + ... + 783907.

It is an arithmetic number, because the mean of its divisors is an integer number (101090979).

Almost surely, 2^402796357 is an apocalyptic number.

It is an amenable number.

402796357 is a deficient number, since it is larger than the sum of its proper divisors (1567559).

402796357 is a wasteful number, since it uses less digits than its factorization.

402796357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567558.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 402796357 is about 20069.7871687769. The cubic root of 402796357 is about 738.5192920045.

The spelling of 402796357 in words is "four hundred two million, seven hundred ninety-six thousand, three hundred fifty-seven".