142550430 has 64 divisors (see below), whose sum is σ = 374927616. Its totient is φ = 34400000.

The previous prime is 142550417. The next prime is 142550437. The reversal of 142550430 is 34055241.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142550430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142550437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81970 + ... + 83690.

It is an arithmetic number, because the mean of its divisors is an integer number (5858244).

Almost surely, 2^142550430 is an apocalyptic number.

142550430 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 142550430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187463808).

142550430 is an abundant number, since it is smaller than the sum of its proper divisors (232377186).

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

142550430 is a wasteful number, since it uses less digits than its factorization.

142550430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 142550430 is about 11939.4484797247. The cubic root of 142550430 is about 522.3835718087.

The spelling of 142550430 in words is "one hundred forty-two million, five hundred fifty thousand, four hundred thirty".