3781400688 has 90 divisors (see below), whose sum is σ = 11459414616. Its totient is φ = 1163500416.

The previous prime is 3781400669. The next prime is 3781400713. The reversal of 3781400688 is 8860041873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 53356 + ... + 102027.

Almost surely, 2^3781400688 is an apocalyptic number.

It is an amenable number.

3781400688 is an abundant number, since it is smaller than the sum of its proper divisors (7678013928).

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

3781400688 is a wasteful number, since it uses less digits than its factorization.

3781400688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155423 (or 155401 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 3781400688 is about 61493.0946367151. The cubic root of 3781400688 is about 1557.9406158996.

The spelling of 3781400688 in words is "three billion, seven hundred eighty-one million, four hundred thousand, six hundred eighty-eight".