964221552 has 60 divisors (see below), whose sum is σ = 3083981680. Its totient is φ = 275491584.

The previous prime is 964221499. The next prime is 964221553. The reversal of 964221552 is 255122469.

964221552 is a `hidden beast` number, since 9 + 642 + 2 + 1 + 5 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964221553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477277 + ... + 479292.

Almost surely, 2^964221552 is an apocalyptic number.

It is an amenable number.

964221552 is an abundant number, since it is smaller than the sum of its proper divisors (2119760128).

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

964221552 is a wasteful number, since it uses less digits than its factorization.

964221552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956590 (or 956581 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 964221552 is about 31051.9170422697. The cubic root of 964221552 is about 987.9287212205.

The spelling of 964221552 in words is "nine hundred sixty-four million, two hundred twenty-one thousand, five hundred fifty-two".