404106994 has 4 divisors (see below), whose sum is σ = 606160494. Its totient is φ = 202053496.

The previous prime is 404106971. The next prime is 404107001. The reversal of 404106994 is 499601404.

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., 395492769 + 8614225 = 19887^2 + 2935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101026747 + ... + 101026750.

Almost surely, 2^404106994 is an apocalyptic number.

404106994 is a deficient number, since it is larger than the sum of its proper divisors (202053500).

404106994 is a wasteful number, since it uses less digits than its factorization.

404106994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202053499.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 404106994 is about 20102.4126412727. The cubic root of 404106994 is about 739.3194339405.

The spelling of 404106994 in words is "four hundred four million, one hundred six thousand, nine hundred ninety-four".