142262274 has 64 divisors (see below), whose sum is σ = 359811072. Its totient is φ = 36422400.

The previous prime is 142262269. The next prime is 142262293. The reversal of 142262274 is 472262241.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30634 + ... + 34970.

It is an arithmetic number, because the mean of its divisors is an integer number (5622048).

Almost surely, 2^142262274 is an apocalyptic number.

142262274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142262274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179905536).

142262274 is an abundant number, since it is smaller than the sum of its proper divisors (217548798).

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

142262274 is a wasteful number, since it uses less digits than its factorization.

142262274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431.

The product of its digits is 10752, while the sum is 30.

The square root of 142262274 is about 11927.3749836249. The cubic root of 142262274 is about 522.0313467472.

The spelling of 142262274 in words is "one hundred forty-two million, two hundred sixty-two thousand, two hundred seventy-four".