2402431220 has 48 divisors (see below), whose sum is σ = 5779296768. Its totient is φ = 821767680.

The previous prime is 2402431219. The next prime is 2402431237. The reversal of 2402431220 is 221342042.

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

It is a junction number, because it is equal to n+sod(n) for n = 2402431192 and 2402431201.

It is a congruent number.

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, 40805 + ... + 80435.

It is an arithmetic number, because the mean of its divisors is an integer number (120402016).

Almost surely, 2^2402431220 is an apocalyptic number.

2402431220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402431220 is an abundant number, since it is smaller than the sum of its proper divisors (3376865548).

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

2402431220 is a wasteful number, since it uses less digits than its factorization.

2402431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40080 (or 40078 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2402431220 is about 49014.6021099835. The cubic root of 2402431220 is about 1339.3178416965.

Adding to 2402431220 its reverse (221342042), we get a palindrome (2623773262).

The spelling of 2402431220 in words is "two billion, four hundred two million, four hundred thirty-one thousand, two hundred twenty".