1442740220 has 24 divisors (see below), whose sum is σ = 3030468000. Its totient is φ = 576960192.

The previous prime is 1442740213. The next prime is 1442740231. The reversal of 1442740220 is 220472441.

It is a self number, because there is not a number n which added to its sum of digits gives 1442740220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163481 + ... + 172079.

It is an arithmetic number, because the mean of its divisors is an integer number (126269500).

Almost surely, 2^1442740220 is an apocalyptic number.

1442740220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442740220 is an abundant number, since it is smaller than the sum of its proper divisors (1587727780).

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

1442740220 is a wasteful number, since it uses less digits than its factorization.

1442740220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16997 (or 16995 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 1442740220 is about 37983.4203304547. The cubic root of 1442740220 is about 1129.9590712719.

The spelling of 1442740220 in words is "one billion, four hundred forty-two million, seven hundred forty thousand, two hundred twenty".