3911000640 has 224 divisors, whose sum is σ = 12888894720. Its totient is φ = 1003954176.

The previous prime is 3911000633. The next prime is 3911000659. The reversal of 3911000640 is 460001193.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3911000640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3658026 + ... + 3659094.

Almost surely, 2^3911000640 is an apocalyptic number.

3911000640 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 3911000640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6444447360).

3911000640 is an abundant number, since it is smaller than the sum of its proper divisors (8977894080).

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

3911000640 is a wasteful number, since it uses less digits than its factorization.

3911000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 3911000640 is about 62537.9935719079. The cubic root of 3911000640 is about 1575.5394997342.

The spelling of 3911000640 in words is "three billion, nine hundred eleven million, six hundred forty", and thus it is an aban number.