1442744272 has 10 divisors (see below), whose sum is σ = 2795317058. Its totient is φ = 721372128.

The previous prime is 1442744269. The next prime is 1442744273. The reversal of 1442744272 is 2724472441.

It can be written as a sum of positive squares in only one way, i.e., 984955456 + 457788816 = 31384^2 + 21396^2 .

It is a super-2 number, since 2×1442744272² = 4163022068777619968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442744273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45085743 + ... + 45085774.

Almost surely, 2^1442744272 is an apocalyptic number.

It is an amenable number.

1442744272 is a deficient number, since it is larger than the sum of its proper divisors (1352572786).

1442744272 is an equidigital number, since it uses as much as digits as its factorization.

1442744272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90171525 (or 90171519 counting only the distinct ones).

The product of its digits is 100352, while the sum is 37.

The square root of 1442744272 is about 37983.4736694789. The cubic root of 1442744272 is about 1129.9601291177.

The spelling of 1442744272 in words is "one billion, four hundred forty-two million, seven hundred forty-four thousand, two hundred seventy-two".