3662261988 has 72 divisors (see below), whose sum is σ = 10734593856. Its totient is φ = 951234240.

The previous prime is 3662261971. The next prime is 3662262011. The reversal of 3662261988 is 8891622663.

It is a self number, because there is not a number n which added to its sum of digits gives 3662261988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169995 + ... + 190322.

Almost surely, 2^3662261988 is an apocalyptic number.

It is an amenable number.

3662261988 is an abundant number, since it is smaller than the sum of its proper divisors (7072331868).

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

3662261988 is a wasteful number, since it uses less digits than its factorization.

3662261988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360353 (or 360340 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 3662261988 is about 60516.6257155833. The cubic root of 3662261988 is about 1541.4039577729.

The spelling of 3662261988 in words is "three billion, six hundred sixty-two million, two hundred sixty-one thousand, nine hundred eighty-eight".