338551786940 has 24 divisors (see below), whose sum is σ = 710971301040. Its totient is φ = 135418324608.

The previous prime is 338551786901. The next prime is 338551786981. The reversal of 338551786940 is 49687155833.

It is a happy number.

It is a super-2 number, since 2×338551786940² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338551786940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1408184 + ... + 1630976.

It is an arithmetic number, because the mean of its divisors is an integer number (29623804210).

Almost surely, 2^338551786940 is an apocalyptic number.

It is an amenable number.

338551786940 is an abundant number, since it is smaller than the sum of its proper divisors (372419514100).

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

338551786940 is a wasteful number, since it uses less digits than its factorization.

338551786940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298781 (or 298779 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 338551786940 in words is "three hundred thirty-eight billion, five hundred fifty-one million, seven hundred eighty-six thousand, nine hundred forty".