142550340 has 48 divisors (see below), whose sum is σ = 399748608. Its totient is φ = 37955584.

The previous prime is 142550333. The next prime is 142550347. The reversal of 142550340 is 43055241.

It is an interprime number because it is at equal distance from previous prime (142550333) and next prime (142550347).

It is a self number, because there is not a number n which added to its sum of digits gives 142550340.

It is not an unprimeable number, because it can be changed into a prime (142550347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50404 + ... + 53156.

It is an arithmetic number, because the mean of its divisors is an integer number (8328096).

Almost surely, 2^142550340 is an apocalyptic number.

142550340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142550340 is an abundant number, since it is smaller than the sum of its proper divisors (257198268).

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

142550340 is a wasteful number, since it uses less digits than its factorization.

142550340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628 (or 3626 counting only the distinct ones).

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

The square root of 142550340 is about 11939.4447107058. Note that the first 3 decimals coincide. The cubic root of 142550340 is about 522.3834618721.

The spelling of 142550340 in words is "one hundred forty-two million, five hundred fifty thousand, three hundred forty".