738847947940 has 36 divisors (see below), whose sum is σ = 1562064810516. Its totient is φ = 293555518336.

The previous prime is 738847947869. The next prime is 738847947947. The reversal of 738847947940 is 49749748837.

It can be written as a sum of positive squares in 6 ways, for example, as 27092501604 + 711755446336 = 164598^2 + 843656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 738847947940.

It is not an unprimeable number, because it can be changed into a prime (738847947947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387979 + ... + 1276018.

It is an arithmetic number, because the mean of its divisors is an integer number (43390689181).

Almost surely, 2^738847947940 is an apocalyptic number.

It is an amenable number.

738847947940 is an abundant number, since it is smaller than the sum of its proper divisors (823216862576).

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

738847947940 is a wasteful number, since it uses less digits than its factorization.

738847947940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664304 (or 1664153 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 70.

The spelling of 738847947940 in words is "seven hundred thirty-eight billion, eight hundred forty-seven million, nine hundred forty-seven thousand, nine hundred forty".