402004194 has 16 divisors (see below), whose sum is σ = 808220160. Its totient is φ = 133299440.

The previous prime is 402004193. The next prime is 402004199. The reversal of 402004194 is 491400204.

It is not an unprimeable number, because it can be changed into a prime (402004193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174249 + ... + 176540.

It is an arithmetic number, because the mean of its divisors is an integer number (50513760).

Almost surely, 2^402004194 is an apocalyptic number.

402004194 is an abundant number, since it is smaller than the sum of its proper divisors (406215966).

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

402004194 is a wasteful number, since it uses less digits than its factorization.

402004194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350985.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 402004194 is about 20050.0422443445. The cubic root of 402004194 is about 738.0348357907.

Adding to 402004194 its reverse (491400204), we get a palindrome (893404398).

The spelling of 402004194 in words is "four hundred two million, four thousand, one hundred ninety-four".