142622250 has 64 divisors (see below), whose sum is σ = 357626880. Its totient is φ = 37857600.

The previous prime is 142622239. The next prime is 142622269. The reversal of 142622250 is 52226241.

It is a happy number.

It is a super-2 number, since 2×142622250² = 40682212390125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142622250.

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, 297511 + ... + 297989.

It is an arithmetic number, because the mean of its divisors is an integer number (5587920).

Almost surely, 2^142622250 is an apocalyptic number.

142622250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142622250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178813440).

142622250 is an abundant number, since it is smaller than the sum of its proper divisors (215004630).

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

142622250 is a wasteful number, since it uses less digits than its factorization.

142622250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142622250 is about 11942.4557776029. The cubic root of 142622250 is about 522.4712864726.

Adding to 142622250 its reverse (52226241), we get a palindrome (194848491).

The spelling of 142622250 in words is "one hundred forty-two million, six hundred twenty-two thousand, two hundred fifty".