338990994408 has 128 divisors (see below), whose sum is σ = 967787274240. Its totient is φ = 98010528000.

The previous prime is 338990994367. The next prime is 338990994443. The reversal of 338990994408 is 804499099833.

It is a super-2 number, since 2×338990994408² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289366 + ... + 872762.

It is an arithmetic number, because the mean of its divisors is an integer number (7560838080).

Almost surely, 2^338990994408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 338990994408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483893637120).

338990994408 is an abundant number, since it is smaller than the sum of its proper divisors (628796279832).

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

338990994408 is a wasteful number, since it uses less digits than its factorization.

338990994408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583519 (or 583515 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 66.

The spelling of 338990994408 in words is "three hundred thirty-eight billion, nine hundred ninety million, nine hundred ninety-four thousand, four hundred eight".