3740381646 has 16 divisors (see below), whose sum is σ = 7501959504. Its totient is φ = 1243261184.

The previous prime is 3740381627. The next prime is 3740381677. The reversal of 3740381646 is 6461830473.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3740381598 and 3740381607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880881 + ... + 885116.

It is an arithmetic number, because the mean of its divisors is an integer number (468872469).

Almost surely, 2^3740381646 is an apocalyptic number.

3740381646 is an abundant number, since it is smaller than the sum of its proper divisors (3761577858).

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

3740381646 is a wasteful number, since it uses less digits than its factorization.

3740381646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766355.

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

The square root of 3740381646 is about 61158.6596157895. The cubic root of 3740381646 is about 1552.2868285081.

The spelling of 3740381646 in words is "three billion, seven hundred forty million, three hundred eighty-one thousand, six hundred forty-six".