964723144 has 64 divisors (see below), whose sum is σ = 2263910400. Its totient is φ = 374414400.

The previous prime is 964723129. The next prime is 964723147. The reversal of 964723144 is 441327469.

It is a junction number, because it is equal to n+sod(n) for n = 964723097 and 964723106.

It is not an unprimeable number, because it can be changed into a prime (964723147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164047 + ... + 169825.

It is an arithmetic number, because the mean of its divisors is an integer number (35373600).

Almost surely, 2^964723144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 964723144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131955200).

964723144 is an abundant number, since it is smaller than the sum of its proper divisors (1299187256).

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

964723144 is a wasteful number, since it uses less digits than its factorization.

964723144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074 (or 6070 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 964723144 is about 31059.9926593681. The cubic root of 964723144 is about 988.0999997129.

The spelling of 964723144 in words is "nine hundred sixty-four million, seven hundred twenty-three thousand, one hundred forty-four".