4001227152 has 80 divisors (see below), whose sum is σ = 11288527488. Its totient is φ = 1213793280.

The previous prime is 4001227147. The next prime is 4001227169. The reversal of 4001227152 is 2517221004.

It is a super-2 number, since 2×4001227152² = 32019637443804062208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853 + ... + 89460.

Almost surely, 2^4001227152 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 4001227152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5644263744).

4001227152 is an abundant number, since it is smaller than the sum of its proper divisors (7287300336).

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

4001227152 is a wasteful number, since it uses less digits than its factorization.

4001227152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90408 (or 90402 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 4001227152 is about 63255.2539477947. The cubic root of 4001227152 is about 1587.5633672352.

Adding to 4001227152 its reverse (2517221004), we get a palindrome (6518448156).

The spelling of 4001227152 in words is "four billion, one million, two hundred twenty-seven thousand, one hundred fifty-two".