3641036281 has 9 divisors (see below), whose sum is σ = 3690509061. Its totient is φ = 3592220412.

The previous prime is 3641036263. The next prime is 3641036297. The reversal of 3641036281 is 1826301463.

It is a happy number.

The square root of 3641036281 is 60341.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3641036281 - 2⁵ = 3641036249 is a prime.

It is a super-2 number, since 2×3641036281² = 26514290399116621922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3641036221) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5007940 + ... + 5008666.

Almost surely, 2^3641036281 is an apocalyptic number.

3641036281 is the 60341-st square number.

3641036281 is the 30171-st centered octagonal number.

It is an amenable number.

3641036281 is a deficient number, since it is larger than the sum of its proper divisors (49472780).

3641036281 is an frugal number, since it uses more digits than its factorization.

3641036281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The cubic root of 3641036281 is about 1538.4203007765.

Multiplying 3641036281 by its product of nonzero digits (20736), we get a square (75500528322816 = 8689104²).

The spelling of 3641036281 in words is "three billion, six hundred forty-one million, thirty-six thousand, two hundred eighty-one".