400079674 has 4 divisors (see below), whose sum is σ = 600119514. Its totient is φ = 200039836.

The previous prime is 400079569. The next prime is 400079699. The reversal of 400079674 is 476970004.

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., 244703449 + 155376225 = 15643^2 + 12465^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100019917 + ... + 100019920.

Almost surely, 2^400079674 is an apocalyptic number.

400079674 is a deficient number, since it is larger than the sum of its proper divisors (200039840).

400079674 is a wasteful number, since it uses less digits than its factorization.

400079674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200039839.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 400079674 is about 20001.9917508232. The cubic root of 400079674 is about 736.8552167346.

The spelling of 400079674 in words is "four hundred million, seventy-nine thousand, six hundred seventy-four".