3781502946 has 48 divisors (see below), whose sum is σ = 9108153600. Its totient is φ = 1126003680.

The previous prime is 3781502903. The next prime is 3781502951. The reversal of 3781502946 is 6492051873.

3781502946 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.

3781502946 is strictly pandigital in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253396 + ... + 267903.

It is an arithmetic number, because the mean of its divisors is an integer number (189753200).

It is a 1-persistent number, because it is pandigital, but 2⋅3781502946 = 7563005892 is not.

Almost surely, 2^3781502946 is an apocalyptic number.

3781502946 is an abundant number, since it is smaller than the sum of its proper divisors (5326650654).

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

3781502946 is a wasteful number, since it uses less digits than its factorization.

3781502946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521351 (or 521348 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 3781502946 is about 61493.9260903059. The cubic root of 3781502946 is about 1557.9546592368.

The spelling of 3781502946 in words is "three billion, seven hundred eighty-one million, five hundred two thousand, nine hundred forty-six".