1442723642 has 8 divisors (see below), whose sum is σ = 2188401300. Its totient is φ = 713256544.

The previous prime is 1442723629. The next prime is 1442723671. The reversal of 1442723642 is 2463272441.

It can be written as a sum of positive squares in 2 ways, for example, as 1442556361 + 167281 = 37981^2 + 409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4052417 + ... + 4052772.

Almost surely, 2^1442723642 is an apocalyptic number.

1442723642 is a deficient number, since it is larger than the sum of its proper divisors (745677658).

1442723642 is an equidigital number, since it uses as much as digits as its factorization.

1442723642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105280.

The product of its digits is 64512, while the sum is 35.

The square root of 1442723642 is about 37983.2021030350. The cubic root of 1442723642 is about 1129.9547432732.

The spelling of 1442723642 in words is "one billion, four hundred forty-two million, seven hundred twenty-three thousand, six hundred forty-two".