399601662 has 32 divisors (see below), whose sum is σ = 834170400. Its totient is φ = 127495680.

The previous prime is 399601651. The next prime is 399601669. The reversal of 399601662 is 266106993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399601669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2287 + ... + 28362.

It is an arithmetic number, because the mean of its divisors is an integer number (26067825).

Almost surely, 2^399601662 is an apocalyptic number.

399601662 is an abundant number, since it is smaller than the sum of its proper divisors (434568738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399601662 is a wasteful number, since it uses less digits than its factorization.

399601662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30748.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 399601662 is about 19990.0390694966. The cubic root of 399601662 is about 736.5616368715.

The spelling of 399601662 in words is "three hundred ninety-nine million, six hundred one thousand, six hundred sixty-two".