394142802 has 32 divisors (see below), whose sum is σ = 834904320. Its totient is φ = 123696720.

The previous prime is 394142779. The next prime is 394142803. The reversal of 394142802 is 208241493.

It is a super-2 number, since 2×394142802² = 310697096736822408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394142803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7977 + ... + 29187.

It is an arithmetic number, because the mean of its divisors is an integer number (26090760).

Almost surely, 2^394142802 is an apocalyptic number.

394142802 is an abundant number, since it is smaller than the sum of its proper divisors (440761518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394142802 is a wasteful number, since it uses less digits than its factorization.

394142802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21398.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 394142802 is about 19853.0300458142. The cubic root of 394142802 is about 733.1922514181.

The spelling of 394142802 in words is "three hundred ninety-four million, one hundred forty-two thousand, eight hundred two".