399250938003 has 4 divisors (see below), whose sum is σ = 532334584008. Its totient is φ = 266167292000.

The previous prime is 399250937999. The next prime is 399250938013. The reversal of 399250938003 is 300839052993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300839052993 = 3 ⋅100279684331.

It is a cyclic number.

It is not a de Polignac number, because 399250938003 - 2² = 399250937999 is a prime.

It is a super-2 number, since 2×399250938003² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (399250938013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66541822998 + ... + 66541823003.

It is an arithmetic number, because the mean of its divisors is an integer number (133083646002).

Almost surely, 2^399250938003 is an apocalyptic number.

399250938003 is a deficient number, since it is larger than the sum of its proper divisors (133083646005).

399250938003 is a wasteful number, since it uses less digits than its factorization.

399250938003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133083646004.

The product of its (nonzero) digits is 1574640, while the sum is 51.

The spelling of 399250938003 in words is "three hundred ninety-nine billion, two hundred fifty million, nine hundred thirty-eight thousand, three".