142563240 has 112 divisors (see below), whose sum is σ = 481029300. Its totient is φ = 38009088.

The previous prime is 142563229. The next prime is 142563247. The reversal of 142563240 is 42365241.

142563240 is a `hidden beast` number, since 1 + 4 + 25 + 632 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142420356 + 142884 = 11934^2 + 378^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142563247) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 26716 + ... + 31604.

Almost surely, 2^142563240 is an apocalyptic number.

142563240 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 142563240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240514650).

142563240 is an abundant number, since it is smaller than the sum of its proper divisors (338466060).

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

142563240 is an equidigital number, since it uses as much as digits as its factorization.

142563240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 142563240 is about 11939.9849246136. The cubic root of 142563240 is about 522.3992189803.

The spelling of 142563240 in words is "one hundred forty-two million, five hundred sixty-three thousand, two hundred forty".