140260864 has 40 divisors (see below), whose sum is σ = 289320768. Its totient is φ = 67860480.

The previous prime is 140260859. The next prime is 140260867. The reversal of 140260864 is 468062041.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140260867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11454 + ... + 20290.

Almost surely, 2^140260864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140260864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144660384).

140260864 is an abundant number, since it is smaller than the sum of its proper divisors (149059904).

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

140260864 is an frugal number, since it uses more digits than its factorization.

140260864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886 (or 8870 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 140260864 is about 11843.1779518844. The cubic root of 140260864 is about 519.5717183621.

The spelling of 140260864 in words is "one hundred forty million, two hundred sixty thousand, eight hundred sixty-four".