142247468 has 24 divisors (see below), whose sum is σ = 280326144. Its totient is φ = 62571600.

The previous prime is 142247467. The next prime is 142247477. The reversal of 142247468 is 864742241.

It is a super-2 number, since 2×142247468² = 40468684304822048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142247467) 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, 50780 + ... + 53507.

It is an arithmetic number, because the mean of its divisors is an integer number (11680256).

Almost surely, 2^142247468 is an apocalyptic number.

It is an amenable number.

142247468 is a deficient number, since it is larger than the sum of its proper divisors (138078676).

142247468 is a wasteful number, since it uses less digits than its factorization.

142247468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104333 (or 104331 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 142247468 is about 11926.7542944424. The cubic root of 142247468 is about 522.0132359156.

The spelling of 142247468 in words is "one hundred forty-two million, two hundred forty-seven thousand, four hundred sixty-eight".