1964138352 has 40 divisors (see below), whose sum is σ = 5535300480. Its totient is φ = 595193280.

The previous prime is 1964138347. The next prime is 1964138387. The reversal of 1964138352 is 2538314691.

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, 1859452 + ... + 1860507.

It is an arithmetic number, because the mean of its divisors is an integer number (138382512).

Almost surely, 2^1964138352 is an apocalyptic number.

1964138352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1964138352 is an abundant number, since it is smaller than the sum of its proper divisors (3571162128).

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

1964138352 is a wasteful number, since it uses less digits than its factorization.

1964138352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719981 (or 3719975 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 1964138352 is about 44318.6005194207. The cubic root of 1964138352 is about 1252.3451126991.

The spelling of 1964138352 in words is "one billion, nine hundred sixty-four million, one hundred thirty-eight thousand, three hundred fifty-two".