3691406290 has 48 divisors (see below), whose sum is σ = 7865333784. Its totient is φ = 1239068160.

The previous prime is 3691406267. The next prime is 3691406309. The reversal of 3691406290 is 926041963.

It can be written as a sum of positive squares in 4 ways, for example, as 960194169 + 2731212121 = 30987^2 + 52261^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101607 + ... + 133066.

Almost surely, 2^3691406290 is an apocalyptic number.

3691406290 is an abundant number, since it is smaller than the sum of its proper divisors (4173927494).

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

3691406290 is a wasteful number, since it uses less digits than its factorization.

3691406290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234715 (or 234704 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 3691406290 is about 60756.9443767542. The cubic root of 3691406290 is about 1545.4819930105.

The spelling of 3691406290 in words is "three billion, six hundred ninety-one million, four hundred six thousand, two hundred ninety".