398067874 has 4 divisors (see below), whose sum is σ = 597101814. Its totient is φ = 199033936.

The previous prime is 398067823. The next prime is 398067889. The reversal of 398067874 is 478760893.

It is a happy number.

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., 301890625 + 96177249 = 17375^2 + 9807^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99516967 + ... + 99516970.

Almost surely, 2^398067874 is an apocalyptic number.

398067874 is a deficient number, since it is larger than the sum of its proper divisors (199033940).

398067874 is a wasteful number, since it uses less digits than its factorization.

398067874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199033939.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 398067874 is about 19951.6383788400. The cubic root of 398067874 is about 735.6180489537.

The spelling of 398067874 in words is "three hundred ninety-eight million, sixty-seven thousand, eight hundred seventy-four".