4001424140 has 48 divisors (see below), whose sum is σ = 9623142144. Its totient is φ = 1369099200.

The previous prime is 4001424131. The next prime is 4001424199. The reversal of 4001424140 is 414241004.

It is a happy number.

It is a super-2 number, since 2×4001424140² = 32022790296349479200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 39635 + ... + 97845.

It is an arithmetic number, because the mean of its divisors is an integer number (200482128).

Almost surely, 2^4001424140 is an apocalyptic number.

It is an amenable number.

4001424140 is an abundant number, since it is smaller than the sum of its proper divisors (5621718004).

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

4001424140 is a wasteful number, since it uses less digits than its factorization.

4001424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58718 (or 58716 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4001424140 is about 63256.8110166803. The cubic root of 4001424140 is about 1587.5894197260.

Adding to 4001424140 its reverse (414241004), we get a palindrome (4415665144).

The spelling of 4001424140 in words is "four billion, one million, four hundred twenty-four thousand, one hundred forty".