402299479 has 4 divisors (see below), whose sum is σ = 403493584. Its totient is φ = 401105376.

The previous prime is 402299477. The next prime is 402299497. The reversal of 402299479 is 974992204.

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

It is a cyclic number.

It is not a de Polignac number, because 402299479 - 2¹ = 402299477 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 (402299473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596547 + ... + 597220.

It is an arithmetic number, because the mean of its divisors is an integer number (100873396).

Almost surely, 2^402299479 is an apocalyptic number.

402299479 is a deficient number, since it is larger than the sum of its proper divisors (1194105).

402299479 is a wasteful number, since it uses less digits than its factorization.

402299479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194104.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 402299479 is about 20057.4045928181. The cubic root of 402299479 is about 738.2154949998.

The spelling of 402299479 in words is "four hundred two million, two hundred ninety-nine thousand, four hundred seventy-nine".