4001420250 has 96 divisors (see below), whose sum is σ = 11220745536. Its totient is φ = 1067029200.

The previous prime is 4001420249. The next prime is 4001420303. The reversal of 4001420250 is 520241004.

4001420250 is a `hidden beast` number, since 400 + 14 + 2 + 0 + 250 = 666.

It is a super-2 number, since 2×4001420250² = 32022728034220125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 27817 + ... + 93683.

It is an arithmetic number, because the mean of its divisors is an integer number (116882766).

Almost surely, 2^4001420250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4001420250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5610372768).

4001420250 is an abundant number, since it is smaller than the sum of its proper divisors (7219325286).

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

4001420250 is an equidigital number, since it uses as much as digits as its factorization.

4001420250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65899 (or 65877 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4001420250 is about 63256.7802689957. The cubic root of 4001420250 is about 1587.5889052654.

Adding to 4001420250 its reverse (520241004), we get a palindrome (4521661254).

The spelling of 4001420250 in words is "four billion, one million, four hundred twenty thousand, two hundred fifty".