1722446020 has 48 divisors (see below), whose sum is σ = 3685889088. Its totient is φ = 675941760.

The previous prime is 1722445999. The next prime is 1722446041. The reversal of 1722446020 is 206442271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1722445999) and next prime (1722446041).

It is a super-4 number, since 4×1722446020⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1722446020.

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, 538867 + ... + 542053.

It is an arithmetic number, because the mean of its divisors is an integer number (76789356).

Almost surely, 2^1722446020 is an apocalyptic number.

1722446020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1722446020 is an abundant number, since it is smaller than the sum of its proper divisors (1963443068).

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

1722446020 is a wasteful number, since it uses less digits than its factorization.

1722446020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1722446020 is about 41502.3616195512. The cubic root of 1722446020 is about 1198.7129766173.

Adding to 1722446020 its reverse (206442271), we get a palindrome (1928888291).

The spelling of 1722446020 in words is "one billion, seven hundred twenty-two million, four hundred forty-six thousand, twenty".