3381746640 has 80 divisors (see below), whose sum is σ = 10587286656. Its totient is φ = 892864000.

The previous prime is 3381746639. The next prime is 3381746699. The reversal of 3381746640 is 466471833.

It is a happy number.

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

It is a super-2 number, since 2×3381746640² = 22872420674302579200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3381746592 and 3381746601.

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, 45516 + ... + 93995.

Almost surely, 2^3381746640 is an apocalyptic number.

3381746640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3381746640 is an abundant number, since it is smaller than the sum of its proper divisors (7205540016).

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

3381746640 is a wasteful number, since it uses less digits than its factorization.

3381746640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139628 (or 139622 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 3381746640 is about 58152.7870355325. The cubic root of 3381746640 is about 1500.9988369577.

The spelling of 3381746640 in words is "three billion, three hundred eighty-one million, seven hundred forty-six thousand, six hundred forty".