3862749690 has 48 divisors (see below), whose sum is σ = 10633926888. Its totient is φ = 969474048.

The previous prime is 3862749689. The next prime is 3862749721. The reversal of 3862749690 is 969472683.

It is a happy number.

3862749690 is a `hidden beast` number, since 3 + 8 + 62 + 7 + 496 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3834457929 + 28291761 = 61923^2 + 5319^2 .

It is a super-2 number, since 2×3862749690² = 29841670335190192200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1260807 + ... + 1263866.

Almost surely, 2^3862749690 is an apocalyptic number.

3862749690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3862749690 is an abundant number, since it is smaller than the sum of its proper divisors (6771177198).

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

3862749690 is a wasteful number, since it uses less digits than its factorization.

3862749690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524703 (or 2524700 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 3862749690 is about 62151.0232417778. The cubic root of 3862749690 is about 1569.0334009880.

The spelling of 3862749690 in words is "three billion, eight hundred sixty-two million, seven hundred forty-nine thousand, six hundred ninety".