3612978236 has 12 divisors (see below), whose sum is σ = 7225956528. Its totient is φ = 1548419232.

The previous prime is 3612978223. The next prime is 3612978263. The reversal of 3612978236 is 6328792163.

It is a happy number.

3612978236 is an admirable number.

It is a super-2 number, since 2×3612978236² = 26107223467619343392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64517441 + ... + 64517496.

It is an arithmetic number, because the mean of its divisors is an integer number (602163044).

Almost surely, 2^3612978236 is an apocalyptic number.

It is an amenable number.

3612978236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3612978236 is a wasteful number, since it uses less digits than its factorization.

3612978236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129034948 (or 129034946 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 3612978236 is about 60108.0546682389. The cubic root of 3612978236 is about 1534.4583865158.

The spelling of 3612978236 in words is "three billion, six hundred twelve million, nine hundred seventy-eight thousand, two hundred thirty-six".