3806813124 has 18 divisors (see below), whose sum is σ = 9622777710. Its totient is φ = 1268937696.

The previous prime is 3806813071. The next prime is 3806813137. The reversal of 3806813124 is 4213186083.

It can be written as a sum of positive squares in only one way, i.e., 3045053124 + 761760000 = 55182^2 + 27600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×3806813124² = 28983652322117278752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 105744809 = 3806813124 / (3 + 8 + 0 + 6 + 8 + 1 + 3 + 1 + 2 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52872369 + ... + 52872440.

Almost surely, 2^3806813124 is an apocalyptic number.

It is an amenable number.

3806813124 is an abundant number, since it is smaller than the sum of its proper divisors (5815964586).

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

3806813124 is a wasteful number, since it uses less digits than its factorization.

3806813124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105744819 (or 105744814 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 3806813124 is about 61699.3770146831. The cubic root of 3806813124 is about 1561.4228094168.

The spelling of 3806813124 in words is "three billion, eight hundred six million, eight hundred thirteen thousand, one hundred twenty-four".