4005051372 has 48 divisors (see below), whose sum is σ = 11866821120. Its totient is φ = 1144300176.

The previous prime is 4005051361. The next prime is 4005051443. The reversal of 4005051372 is 2731505004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2648088 + ... + 2649599.

It is an arithmetic number, because the mean of its divisors is an integer number (247225440).

Almost surely, 2^4005051372 is an apocalyptic number.

4005051372 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4005051372 is an abundant number, since it is smaller than the sum of its proper divisors (7861769748).

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

4005051372 is a wasteful number, since it uses less digits than its factorization.

4005051372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297707 (or 5297699 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 4005051372 is about 63285.4752056110. The cubic root of 4005051372 is about 1588.0689836517.

Adding to 4005051372 its reverse (2731505004), we get a palindrome (6736556376).

The spelling of 4005051372 in words is "four billion, five million, fifty-one thousand, three hundred seventy-two".