3644452152 has 96 divisors (see below), whose sum is σ = 10919525760. Its totient is φ = 1088808000.

The previous prime is 3644452103. The next prime is 3644452171. The reversal of 3644452152 is 2512544463.

3644452152 is a `hidden beast` number, since 3 + 64 + 445 + 2 + 152 = 666.

It is a super-2 number, since 2×3644452152² = 26564062976434862208, which contains 22 as substring.

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

It is a congruent number.

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, 23827 + ... + 88637.

It is an arithmetic number, because the mean of its divisors is an integer number (113745060).

Almost surely, 2^3644452152 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 3644452152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5459762880).

3644452152 is an abundant number, since it is smaller than the sum of its proper divisors (7275073608).

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

3644452152 is a wasteful number, since it uses less digits than its factorization.

3644452152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64905 (or 64898 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 3644452152 is about 60369.2980909999. The cubic root of 3644452152 is about 1538.9012446970.

The spelling of 3644452152 in words is "three billion, six hundred forty-four million, four hundred fifty-two thousand, one hundred fifty-two".