3812122644 has 48 divisors (see below), whose sum is σ = 9707206656. Its totient is φ = 1154757600.

The previous prime is 3812122637. The next prime is 3812122661. The reversal of 3812122644 is 4462212183.

It is a super-3 number, since 3×3812122644³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 655389 + ... + 661179.

It is an arithmetic number, because the mean of its divisors is an integer number (202233472).

Almost surely, 2^3812122644 is an apocalyptic number.

It is an amenable number.

3812122644 is an abundant number, since it is smaller than the sum of its proper divisors (5895084012).

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

3812122644 is a wasteful number, since it uses less digits than its factorization.

3812122644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10796 (or 10794 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 3812122644 is about 61742.3893609569. The cubic root of 3812122644 is about 1562.1483992146.

The spelling of 3812122644 in words is "three billion, eight hundred twelve million, one hundred twenty-two thousand, six hundred forty-four".