3923791740 has 192 divisors, whose sum is σ = 13349952000. Its totient is φ = 948879360.

The previous prime is 3923791733. The next prime is 3923791741. The reversal of 3923791740 is 471973293.

It is a super-2 number, since 2×3923791740² = 30792283237784455200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3923791741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4567431 + ... + 4568289.

It is an arithmetic number, because the mean of its divisors is an integer number (69531000).

Almost surely, 2^3923791740 is an apocalyptic number.

3923791740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3923791740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6674976000).

3923791740 is an abundant number, since it is smaller than the sum of its proper divisors (9426160260).

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

3923791740 is a wasteful number, since it uses less digits than its factorization.

3923791740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 3923791740 is about 62640.1767238886. The cubic root of 3923791740 is about 1577.2552544036.

The spelling of 3923791740 in words is "three billion, nine hundred twenty-three million, seven hundred ninety-one thousand, seven hundred forty".