4090090852 has 24 divisors (see below), whose sum is σ = 7362406520. Its totient is φ = 1986716160.

The previous prime is 4090090819. The next prime is 4090090861. The reversal of 4090090852 is 2580900904.

It can be written as a sum of positive squares in 4 ways, for example, as 1600480036 + 2489610816 = 40006^2 + 49896^2 .

It is a super-2 number, since 2×4090090852² = 33457686355228171808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76924 + ... + 118732.

Almost surely, 2^4090090852 is an apocalyptic number.

It is an amenable number.

4090090852 is a deficient number, since it is larger than the sum of its proper divisors (3272315668).

4090090852 is a wasteful number, since it uses less digits than its factorization.

4090090852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42511 (or 42509 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 4090090852 is about 63953.8181190146. The cubic root of 4090090852 is about 1599.2302093859.

The spelling of 4090090852 in words is "four billion, ninety million, ninety thousand, eight hundred fifty-two".