140140460 has 96 divisors (see below), whose sum is σ = 321753600. Its totient is φ = 51148800.

The previous prime is 140140411. The next prime is 140140463. The reversal of 140140460 is 64041041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (140140463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940466 + ... + 940614.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^140140460 is an apocalyptic number.

140140460 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 140140460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160876800).

140140460 is an abundant number, since it is smaller than the sum of its proper divisors (181613140).

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

140140460 is a wasteful number, since it uses less digits than its factorization.

140140460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 140140460 is about 11838.0935965214. The cubic root of 140140460 is about 519.4230039818.

The spelling of 140140460 in words is "one hundred forty million, one hundred forty thousand, four hundred sixty".