142275640 has 64 divisors (see below), whose sum is σ = 346096800. Its totient is φ = 52326912.

The previous prime is 142275611. The next prime is 142275659. The reversal of 142275640 is 46572241.

142275640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217554 + ... + 218206.

Almost surely, 2^142275640 is an apocalyptic number.

142275640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142275640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173048400).

142275640 is an abundant number, since it is smaller than the sum of its proper divisors (203821160).

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

142275640 is a wasteful number, since it uses less digits than its factorization.

142275640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 142275640 is about 11927.9352781611. The cubic root of 142275640 is about 522.0476950788.

The spelling of 142275640 in words is "one hundred forty-two million, two hundred seventy-five thousand, six hundred forty".