3642156 has 72 divisors (see below), whose sum is σ = 10701600. Its totient is φ = 1022976.

The previous prime is 3642101. The next prime is 3642157. The reversal of 3642156 is 6512463.

3642156 is a `hidden beast` number, since 3 + 642 + 15 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (3642157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24370 + ... + 24518.

Almost surely, 2^3642156 is an apocalyptic number.

3642156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3642156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5350800).

3642156 is an abundant number, since it is smaller than the sum of its proper divisors (7059444).

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

3642156 is a wasteful number, since it uses less digits than its factorization.

3642156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 258 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 3642156 is about 1908.4433447184. The cubic root of 3642156 is about 153.8577986827.

The spelling of 3642156 in words is "three million, six hundred forty-two thousand, one hundred fifty-six".