3913077840 has 80 divisors (see below), whose sum is σ = 13863481728. Its totient is φ = 894417408.

The previous prime is 3913077829. The next prime is 3913077853. The reversal of 3913077840 is 487703193.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 3913077792 and 3913077801.

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, 1162927 + ... + 1166286.

Almost surely, 2^3913077840 is an apocalyptic number.

3913077840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3913077840 is an abundant number, since it is smaller than the sum of its proper divisors (9950403888).

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

3913077840 is a wasteful number, since it uses less digits than its factorization.

3913077840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329236 (or 2329230 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 3913077840 is about 62554.5988717057. The cubic root of 3913077840 is about 1575.8183824485.

The spelling of 3913077840 in words is "three billion, nine hundred thirteen million, seventy-seven thousand, eight hundred forty".