1964111240 has 96 divisors (see below), whose sum is σ = 5469094080. Its totient is φ = 621593856.

The previous prime is 1964111213. The next prime is 1964111251. The reversal of 1964111240 is 421114691.

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, 26567 + ... + 68073.

It is an arithmetic number, because the mean of its divisors is an integer number (56969730).

Almost surely, 2^1964111240 is an apocalyptic number.

1964111240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1964111240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2734547040).

1964111240 is an abundant number, since it is smaller than the sum of its proper divisors (3504982840).

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

1964111240 is a wasteful number, since it uses less digits than its factorization.

1964111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41551 (or 41534 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1964111240 is about 44318.2946422806. The cubic root of 1964111240 is about 1252.3393504205.

The spelling of 1964111240 in words is "one billion, nine hundred sixty-four million, one hundred eleven thousand, two hundred forty".