3702988221 has 16 divisors (see below), whose sum is σ = 5154441600. Its totient is φ = 2361659328.

The previous prime is 3702988213. The next prime is 3702988241. The reversal of 3702988221 is 1228892073.

It is a happy number.

3702988221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3702988221 - 2³ = 3702988213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3702988241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185761 + ... + 204726.

It is an arithmetic number, because the mean of its divisors is an integer number (322152600).

Almost surely, 2^3702988221 is an apocalyptic number.

It is an amenable number.

3702988221 is a deficient number, since it is larger than the sum of its proper divisors (1451453379).

3702988221 is a wasteful number, since it uses less digits than its factorization.

3702988221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390628.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 3702988221 is about 60852.1833708537. The cubic root of 3702988221 is about 1547.0966421589.

It can be divided in two parts, 37029 and 88221, that added together give a triangular number (125250 = T₅₀₀).

The spelling of 3702988221 in words is "three billion, seven hundred two million, nine hundred eighty-eight thousand, two hundred twenty-one".