394379774 has 4 divisors (see below), whose sum is σ = 591569664. Its totient is φ = 197189886.

The previous prime is 394379747. The next prime is 394379801. The reversal of 394379774 is 477973493.

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

It is an interprime number because it is at equal distance from previous prime (394379747) and next prime (394379801).

It is a super-2 number, since 2×394379774² = 311070812280582152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98594942 + ... + 98594945.

It is an arithmetic number, because the mean of its divisors is an integer number (147892416).

Almost surely, 2^394379774 is an apocalyptic number.

394379774 is a deficient number, since it is larger than the sum of its proper divisors (197189890).

394379774 is a wasteful number, since it uses less digits than its factorization.

394379774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197189889.

The product of its digits is 4000752, while the sum is 53.

The square root of 394379774 is about 19858.9973060072. The cubic root of 394379774 is about 733.3391619831.

The spelling of 394379774 in words is "three hundred ninety-four million, three hundred seventy-nine thousand, seven hundred seventy-four".