142917744 has 40 divisors (see below), whose sum is σ = 369900432. Its totient is φ = 47549440.

The previous prime is 142917743. The next prime is 142917757. The reversal of 142917744 is 447719241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142917743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25954 + ... + 30974.

Almost surely, 2^142917744 is an apocalyptic number.

It is an amenable number.

142917744 is an abundant number, since it is smaller than the sum of its proper divisors (226982688).

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

142917744 is a wasteful number, since it uses less digits than its factorization.

142917744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625 (or 5619 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 142917744 is about 11954.8209522351. The cubic root of 142917744 is about 522.8318674941.

The spelling of 142917744 in words is "one hundred forty-two million, nine hundred seventeen thousand, seven hundred forty-four".