3201099690 has 32 divisors (see below), whose sum is σ = 7731584640. Its totient is φ = 848188224.

The previous prime is 3201099631. The next prime is 3201099691. The reversal of 3201099690 is 969901023.

It is a happy number.

It is a super-2 number, since 2×3201099690² = 20494078450636192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3201099691) 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, 335110 + ... + 344529.

It is an arithmetic number, because the mean of its divisors is an integer number (241612020).

Almost surely, 2^3201099690 is an apocalyptic number.

3201099690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3201099690 is an abundant number, since it is smaller than the sum of its proper divisors (4530484950).

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

3201099690 is a wasteful number, since it uses less digits than its factorization.

3201099690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679806.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 3201099690 is about 56578.2616381946. The cubic root of 3201099690 is about 1473.7813839815.

The spelling of 3201099690 in words is "three billion, two hundred one million, ninety-nine thousand, six hundred ninety".