6404402402 has 8 divisors (see below), whose sum is σ = 9612512976. Its totient is φ = 3200231412.

The previous prime is 6404402363. The next prime is 6404402441. The reversal of 6404402402 is 2042044046.

It is an interprime number because it is at equal distance from previous prime (6404402363) and next prime (6404402441).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980828 + ... + 987335.

It is an arithmetic number, because the mean of its divisors is an integer number (1201564122).

Almost surely, 2^6404402402 is an apocalyptic number.

6404402402 is a deficient number, since it is larger than the sum of its proper divisors (3208110574).

6404402402 is a wasteful number, since it uses less digits than its factorization.

6404402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969792.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 6404402402 is about 80027.5102824023. The cubic root of 6404402402 is about 1857.0611471196.

Adding to 6404402402 its reverse (2042044046), we get a palindrome (8446446448).

The spelling of 6404402402 in words is "six billion, four hundred four million, four hundred two thousand, four hundred two".