3690443620 has 24 divisors (see below), whose sum is σ = 7938956088. Its totient is φ = 1440172800.

The previous prime is 3690443573. The next prime is 3690443621. The reversal of 3690443620 is 263440963.

It can be written as a sum of positive squares in 4 ways, for example, as 107702884 + 3582740736 = 10378^2 + 59856^2 .

It is a super-2 number, since 2×3690443620² = 27238748224797408800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3690443620.

It is not an unprimeable number, because it can be changed into a prime (3690443621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249451 + ... + 2251090.

It is an arithmetic number, because the mean of its divisors is an integer number (330789837).

Almost surely, 2^3690443620 is an apocalyptic number.

It is an amenable number.

3690443620 is an abundant number, since it is smaller than the sum of its proper divisors (4248512468).

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

3690443620 is a wasteful number, since it uses less digits than its factorization.

3690443620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500591 (or 4500589 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 3690443620 is about 60749.0215559066. The cubic root of 3690443620 is about 1545.3476342337.

The spelling of 3690443620 in words is "three billion, six hundred ninety million, four hundred forty-three thousand, six hundred twenty".