4020123244 has 24 divisors (see below), whose sum is σ = 7131378240. Its totient is φ = 1982637696.

The previous prime is 4020123221. The next prime is 4020123251. The reversal of 4020123244 is 4423210204.

It is a happy number.

It is a super-2 number, since 2×4020123244² = 32322781793898167072, which contains 22 as substring.

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, 340854 + ... + 352450.

It is an arithmetic number, because the mean of its divisors is an integer number (297140760).

Almost surely, 2^4020123244 is an apocalyptic number.

It is an amenable number.

4020123244 is a deficient number, since it is larger than the sum of its proper divisors (3111254996).

4020123244 is a wasteful number, since it uses less digits than its factorization.

4020123244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777 (or 12775 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4020123244 is about 63404.4418317834. The cubic root of 4020123244 is about 1590.0585720021.

Adding to 4020123244 its reverse (4423210204), we get a palindrome (8443333448).

The spelling of 4020123244 in words is "four billion, twenty million, one hundred twenty-three thousand, two hundred forty-four".