4001249320 has 32 divisors (see below), whose sum is σ = 9015901920. Its totient is φ = 1598172480.

The previous prime is 4001249279. The next prime is 4001249339. The reversal of 4001249320 is 239421004.

It is a super-2 number, since 2×4001249320² = 32019992241600924800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44742 + ... + 100021.

It is an arithmetic number, because the mean of its divisors is an integer number (281746935).

Almost surely, 2^4001249320 is an apocalyptic number.

4001249320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4001249320 is an abundant number, since it is smaller than the sum of its proper divisors (5014652600).

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

4001249320 is a wasteful number, since it uses less digits than its factorization.

4001249320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145465 (or 145461 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4001249320 is about 63255.4291741033. The cubic root of 4001249320 is about 1587.5662990890.

The spelling of 4001249320 in words is "four billion, one million, two hundred forty-nine thousand, three hundred twenty".