140442460 has 12 divisors (see below), whose sum is σ = 294929208. Its totient is φ = 56176976.

The previous prime is 140442451. The next prime is 140442461. The reversal of 140442460 is 64244041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140442461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3511042 + ... + 3511081.

It is an arithmetic number, because the mean of its divisors is an integer number (24577434).

Almost surely, 2^140442460 is an apocalyptic number.

140442460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140442460 is an abundant number, since it is smaller than the sum of its proper divisors (154486748).

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

140442460 is a wasteful number, since it uses less digits than its factorization.

140442460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022132 (or 7022130 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 140442460 is about 11850.8421641671. The cubic root of 140442460 is about 519.7958518161.

The spelling of 140442460 in words is "one hundred forty million, four hundred forty-two thousand, four hundred sixty".