3620041521 has 4 divisors (see below), whose sum is σ = 4826722032. Its totient is φ = 2413361012.

The previous prime is 3620041517. The next prime is 3620041541. The reversal of 3620041521 is 1251400263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3620041521 - 2² = 3620041517 is a prime.

It is a super-2 number, since 2×3620041521² = 26209401227527986882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3620041491 and 3620041500.

It is not an unprimeable number, because it can be changed into a prime (3620041501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603340251 + ... + 603340256.

It is an arithmetic number, because the mean of its divisors is an integer number (1206680508).

Almost surely, 2^3620041521 is an apocalyptic number.

It is an amenable number.

3620041521 is a deficient number, since it is larger than the sum of its proper divisors (1206680511).

3620041521 is a wasteful number, since it uses less digits than its factorization.

3620041521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206680510.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3620041521 is about 60166.7808761612. The cubic root of 3620041521 is about 1535.4576786026.

Adding to 3620041521 its reverse (1251400263), we get a palindrome (4871441784).

The spelling of 3620041521 in words is "three billion, six hundred twenty million, forty-one thousand, five hundred twenty-one".