399951411 has 8 divisors (see below), whose sum is σ = 538161360. Its totient is φ = 264187872.

The previous prime is 399951407. The next prime is 399951427. The reversal of 399951411 is 114159993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 399951411 - 2² = 399951407 is a prime.

It is a super-2 number, since 2×399951411² = 319922262321781842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (399951481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611220 + ... + 611873.

It is an arithmetic number, because the mean of its divisors is an integer number (67270170).

Almost surely, 2^399951411 is an apocalyptic number.

399951411 is a deficient number, since it is larger than the sum of its proper divisors (138209949).

399951411 is a wasteful number, since it uses less digits than its factorization.

399951411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223205.

The product of its digits is 43740, while the sum is 42.

The square root of 399951411 is about 19998.7852381088. The cubic root of 399951411 is about 736.7764646189.

The spelling of 399951411 in words is "three hundred ninety-nine million, nine hundred fifty-one thousand, four hundred eleven".