3812943870 has 48 divisors (see below), whose sum is σ = 10061634960. Its totient is φ = 1001607552.

The previous prime is 3812943863. The next prime is 3812943877. The reversal of 3812943870 is 783492183.

It is an interprime number because it is at equal distance from previous prime (3812943863) and next prime (3812943877).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812943877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310135 + ... + 322194.

It is an arithmetic number, because the mean of its divisors is an integer number (209617395).

Almost surely, 2^3812943870 is an apocalyptic number.

3812943870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3812943870 is an abundant number, since it is smaller than the sum of its proper divisors (6248691090).

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

3812943870 is a wasteful number, since it uses less digits than its factorization.

3812943870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632409 (or 632406 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 3812943870 is about 61749.0394257271. The cubic root of 3812943870 is about 1562.2605663623.

The spelling of 3812943870 in words is "three billion, eight hundred twelve million, nine hundred forty-three thousand, eight hundred seventy".