142277240 has 64 divisors (see below), whose sum is σ = 368625600. Its totient is φ = 48411648.

The previous prime is 142277231. The next prime is 142277273. The reversal of 142277240 is 42772241.

142277240 is nontrivially palindromic in base 16.

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, 36506 + ... + 40214.

It is an arithmetic number, because the mean of its divisors is an integer number (5759775).

Almost surely, 2^142277240 is an apocalyptic number.

142277240 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 142277240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184312800).

142277240 is an abundant number, since it is smaller than the sum of its proper divisors (226348360).

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

142277240 is a wasteful number, since it uses less digits than its factorization.

With its successor (142277241) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (3860).

142277240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 142277240 is about 11928.0023474176. The cubic root of 142277240 is about 522.0496520153.

The spelling of 142277240 in words is "one hundred forty-two million, two hundred seventy-seven thousand, two hundred forty".