140342544 has 50 divisors (see below), whose sum is σ = 406195790. Its totient is φ = 46780416.

The previous prime is 140342519. The next prime is 140342551. The reversal of 140342544 is 445243041.

It is a happy number.

140342544 is a `hidden beast` number, since 1 + 403 + 4 + 254 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84272400 + 56070144 = 9180^2 + 7488^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 52849 + ... + 55440.

Almost surely, 2^140342544 is an apocalyptic number.

It is an amenable number.

140342544 is an abundant number, since it is smaller than the sum of its proper divisors (265853246).

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

140342544 is a wasteful number, since it uses less digits than its factorization.

140342544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108309 (or 108294 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 140342544 is about 11846.6258487385. The cubic root of 140342544 is about 519.6725551920.

Adding to 140342544 its reverse (445243041), we get a palindrome (585585585).

The spelling of 140342544 in words is "one hundred forty million, three hundred forty-two thousand, five hundred forty-four".