3990199285 has 16 divisors (see below), whose sum is σ = 5071792752. Its totient is φ = 3003264000.

The previous prime is 3990199277. The next prime is 3990199307. The reversal of 3990199285 is 5829910993.

It can be written as a sum of positive squares in 8 ways, for example, as 887364 + 3989311921 = 942^2 + 63161^2 .

It is not a de Polignac number, because 3990199285 - 2³ = 3990199277 is a prime.

It is a super-2 number, since 2×3990199285² = 31843380668029022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273475 + ... + 287695.

It is an arithmetic number, because the mean of its divisors is an integer number (316987047).

Almost surely, 2^3990199285 is an apocalyptic number.

It is an amenable number.

3990199285 is a deficient number, since it is larger than the sum of its proper divisors (1081593467).

3990199285 is a wasteful number, since it uses less digits than its factorization.

3990199285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17544.

The product of its (nonzero) digits is 1574640, while the sum is 55.

The square root of 3990199285 is about 63168.0242290354. The cubic root of 3990199285 is about 1586.1035195533.

The spelling of 3990199285 in words is "three billion, nine hundred ninety million, one hundred ninety-nine thousand, two hundred eighty-five".