1722024420 has 24 divisors (see below), whose sum is σ = 4821668544. Its totient is φ = 459206496.

The previous prime is 1722024391. The next prime is 1722024427. The reversal of 1722024420 is 244202271.

It is not an unprimeable number, because it can be changed into a prime (1722024427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14350144 + ... + 14350263.

It is an arithmetic number, because the mean of its divisors is an integer number (200902856).

Almost surely, 2^1722024420 is an apocalyptic number.

1722024420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1722024420 is an abundant number, since it is smaller than the sum of its proper divisors (3099644124).

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

1722024420 is a wasteful number, since it uses less digits than its factorization.

1722024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28700419 (or 28700417 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 1722024420 is about 41497.2820796736. The cubic root of 1722024420 is about 1198.6151663668.

Adding to 1722024420 its reverse (244202271), we get a palindrome (1966226691).

The spelling of 1722024420 in words is "one billion, seven hundred twenty-two million, twenty-four thousand, four hundred twenty".