399246901954 has 16 divisors (see below), whose sum is σ = 608227375392. Its totient is φ = 196521441408.

The previous prime is 399246901877. The next prime is 399246901967. The reversal of 399246901954 is 459109642993.

It is a junction number, because it is equal to n+sod(n) for n = 399246901892 and 399246901901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4202319 + ... + 4296274.

It is an arithmetic number, because the mean of its divisors is an integer number (38014210962).

Almost surely, 2^399246901954 is an apocalyptic number.

399246901954 is a deficient number, since it is larger than the sum of its proper divisors (208980473438).

399246901954 is a wasteful number, since it uses less digits than its factorization.

399246901954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498961.

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 399246901954 in words is "three hundred ninety-nine billion, two hundred forty-six million, nine hundred one thousand, nine hundred fifty-four".