4252040420 has 24 divisors (see below), whose sum is σ = 8986165944. Its totient is φ = 1689981696.

The previous prime is 4252040399. The next prime is 4252040431. The reversal of 4252040420 is 240402524.

It can be written as a sum of positive squares in 4 ways, for example, as 79138816 + 4172901604 = 8896^2 + 64598^2 .

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, 673937 + ... + 680216.

It is an arithmetic number, because the mean of its divisors is an integer number (374423581).

Almost surely, 2^4252040420 is an apocalyptic number.

It is an amenable number.

4252040420 is an abundant number, since it is smaller than the sum of its proper divisors (4734125524).

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

4252040420 is a wasteful number, since it uses less digits than its factorization.

4252040420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354319 (or 1354317 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4252040420 is about 65207.6714811992. The cubic root of 4252040420 is about 1620.0650814681.

Adding to 4252040420 its reverse (240402524), we get a palindrome (4492442944).

The spelling of 4252040420 in words is "four billion, two hundred fifty-two million, forty thousand, four hundred twenty".