3643242156 has 18 divisors (see below), whose sum is σ = 9209306652. Its totient is φ = 1214414040.

The previous prime is 3643242143. The next prime is 3643242193. The reversal of 3643242156 is 6512423463.

3643242156 is a `hidden beast` number, since 3 + 6 + 432 + 4 + 215 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 101201171 = 3643242156 / (3 + 6 + 4 + 3 + 2 + 4 + 2 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 3643242156.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50600550 + ... + 50600621.

Almost surely, 2^3643242156 is an apocalyptic number.

3643242156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3643242156 is an abundant number, since it is smaller than the sum of its proper divisors (5566064496).

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

3643242156 is a wasteful number, since it uses less digits than its factorization.

3643242156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101201181 (or 101201176 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 3643242156 is about 60359.2756417769. The cubic root of 3643242156 is about 1538.7309154417.

The spelling of 3643242156 in words is "three billion, six hundred forty-three million, two hundred forty-two thousand, one hundred fifty-six".