402941894 has 4 divisors (see below), whose sum is σ = 604412844. Its totient is φ = 201470946.

The previous prime is 402941887. The next prime is 402941897. The reversal of 402941894 is 498149204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402941897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100735472 + ... + 100735475.

It is an arithmetic number, because the mean of its divisors is an integer number (151103211).

Almost surely, 2^402941894 is an apocalyptic number.

402941894 is a deficient number, since it is larger than the sum of its proper divisors (201470950).

402941894 is a wasteful number, since it uses less digits than its factorization.

402941894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201470949.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 402941894 is about 20073.4126147001. The cubic root of 402941894 is about 738.6082277143.

The spelling of 402941894 in words is "four hundred two million, nine hundred forty-one thousand, eight hundred ninety-four".