3215126740 has 24 divisors (see below), whose sum is σ = 7716304512. Its totient is φ = 1102329120.

The previous prime is 3215126723. The next prime is 3215126773. The reversal of 3215126740 is 476215123.

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, 11482456 + ... + 11482735.

It is an arithmetic number, because the mean of its divisors is an integer number (321512688).

Almost surely, 2^3215126740 is an apocalyptic number.

It is an amenable number.

3215126740 is an abundant number, since it is smaller than the sum of its proper divisors (4501177772).

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

3215126740 is a wasteful number, since it uses less digits than its factorization.

3215126740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22965207 (or 22965205 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3215126740 is about 56702.0876158894. The cubic root of 3215126740 is about 1475.9309247375.

The spelling of 3215126740 in words is "three billion, two hundred fifteen million, one hundred twenty-six thousand, seven hundred forty".