401049994 has 4 divisors (see below), whose sum is σ = 601574994. Its totient is φ = 200524996.

The previous prime is 401049959. The next prime is 401050003. The reversal of 401049994 is 499940104.

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

It can be written as a sum of positive squares in only one way, i.e., 337640625 + 63409369 = 18375^2 + 7963^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100262497 + ... + 100262500.

Almost surely, 2^401049994 is an apocalyptic number.

401049994 is a deficient number, since it is larger than the sum of its proper divisors (200525000).

401049994 is a wasteful number, since it uses less digits than its factorization.

401049994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200524999.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 401049994 is about 20026.2326462068. The cubic root of 401049994 is about 737.4504382667.

The spelling of 401049994 in words is "four hundred one million, forty-nine thousand, nine hundred ninety-four".