4025400240 has 40 divisors (see below), whose sum is σ = 12478741488. Its totient is φ = 1073440000.

The previous prime is 4025400229. The next prime is 4025400263. The reversal of 4025400240 is 420045204.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8386011 + ... + 8386490.

Almost surely, 2^4025400240 is an apocalyptic number.

4025400240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4025400240 is an abundant number, since it is smaller than the sum of its proper divisors (8453341248).

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

4025400240 is a wasteful number, since it uses less digits than its factorization.

4025400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16772517 (or 16772511 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 4025400240 is about 63446.0419569259. The cubic root of 4025400240 is about 1590.7539954620.

Adding to 4025400240 its reverse (420045204), we get a palindrome (4445445444).

The spelling of 4025400240 in words is "four billion, twenty-five million, four hundred thousand, two hundred forty".