402293949 has 4 divisors (see below), whose sum is σ = 536391936. Its totient is φ = 268195964.

The previous prime is 402293923. The next prime is 402293953. The reversal of 402293949 is 949392204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402293949 - 2⁸ = 402293693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402293949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402293909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67048989 + ... + 67048994.

It is an arithmetic number, because the mean of its divisors is an integer number (134097984).

Almost surely, 2^402293949 is an apocalyptic number.

It is an amenable number.

402293949 is a deficient number, since it is larger than the sum of its proper divisors (134097987).

402293949 is a wasteful number, since it uses less digits than its factorization.

402293949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134097986.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 402293949 is about 20057.2667380179. The cubic root of 402293949 is about 738.2121124862.

The spelling of 402293949 in words is "four hundred two million, two hundred ninety-three thousand, nine hundred forty-nine".