3918553140 has 48 divisors (see below), whose sum is σ = 11325888000. Its totient is φ = 1011239040.

The previous prime is 3918553139. The next prime is 3918553151. The reversal of 3918553140 is 413558193.

It is a super-2 number, since 2×3918553140² = 30710117422007719200, which contains 22 as substring.

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, 1051515 + ... + 1055234.

It is an arithmetic number, because the mean of its divisors is an integer number (235956000).

Almost surely, 2^3918553140 is an apocalyptic number.

3918553140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3918553140 is an abundant number, since it is smaller than the sum of its proper divisors (7407334860).

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

3918553140 is a wasteful number, since it uses less digits than its factorization.

3918553140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106792 (or 2106790 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 3918553140 is about 62598.3477417735. The cubic root of 3918553140 is about 1576.5530179147.

The spelling of 3918553140 in words is "three billion, nine hundred eighteen million, five hundred fifty-three thousand, one hundred forty".