142902720 has 252 divisors, whose sum is σ = 517687560. Its totient is φ = 36169728.

The previous prime is 142902719. The next prime is 142902733. The reversal of 142902720 is 27209241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2422051 + ... + 2422109.

Almost surely, 2^142902720 is an apocalyptic number.

142902720 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 142902720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258843780).

142902720 is an abundant number, since it is smaller than the sum of its proper divisors (374784840).

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

142902720 is a wasteful number, since it uses less digits than its factorization.

142902720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 142902720 is about 11954.1925699731. The cubic root of 142902720 is about 522.8135462299.

The spelling of 142902720 in words is "one hundred forty-two million, nine hundred two thousand, seven hundred twenty".