142725240 has 480 divisors, whose sum is σ = 595900800. Its totient is φ = 30481920.

The previous prime is 142725181. The next prime is 142725241. The reversal of 142725240 is 42527241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142725241) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4604025 + ... + 4604055.

It is an arithmetic number, because the mean of its divisors is an integer number (1241460).

Almost surely, 2^142725240 is an apocalyptic number.

142725240 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 142725240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297950400).

142725240 is an abundant number, since it is smaller than the sum of its proper divisors (453175560).

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

142725240 is a wasteful number, since it uses less digits than its factorization.

142725240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 142725240 is about 11946.7669266626. The cubic root of 142725240 is about 522.5970180719.

The spelling of 142725240 in words is "one hundred forty-two million, seven hundred twenty-five thousand, two hundred forty".