3218748738 has 16 divisors (see below), whose sum is σ = 6446459520. Its totient is φ = 1071422576.

The previous prime is 3218748727. The next prime is 3218748779. The reversal of 3218748738 is 8378478123.

It is a happy 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, 368745 + ... + 377372.

It is an arithmetic number, because the mean of its divisors is an integer number (402903720).

Almost surely, 2^3218748738 is an apocalyptic number.

3218748738 is an abundant number, since it is smaller than the sum of its proper divisors (3227710782).

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

3218748738 is a wasteful number, since it uses less digits than its factorization.

3218748738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746841.

The product of its digits is 1806336, while the sum is 51.

The square root of 3218748738 is about 56734.0174674771. The cubic root of 3218748738 is about 1476.4849529405.

The spelling of 3218748738 in words is "three billion, two hundred eighteen million, seven hundred forty-eight thousand, seven hundred thirty-eight".