142740044 has 12 divisors (see below), whose sum is σ = 252957600. Its totient is φ = 70466448.

The previous prime is 142740011. The next prime is 142740053. The reversal of 142740044 is 440047241.

It is a super-2 number, since 2×142740044² = 40749440322243872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142739995 and 142740022.

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, 225539 + ... + 226170.

It is an arithmetic number, because the mean of its divisors is an integer number (21079800).

Almost surely, 2^142740044 is an apocalyptic number.

It is an amenable number.

142740044 is a deficient number, since it is larger than the sum of its proper divisors (110217556).

142740044 is a wasteful number, since it uses less digits than its factorization.

142740044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451792 (or 451790 counting only the distinct ones).

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

The square root of 142740044 is about 11947.3864924510. The cubic root of 142740044 is about 522.6150860249.

Adding to 142740044 its reverse (440047241), we get a palindrome (582787285).

The spelling of 142740044 in words is "one hundred forty-two million, seven hundred forty thousand, forty-four".