140544468 has 72 divisors (see below), whose sum is σ = 366414048. Its totient is φ = 45396288.

The previous prime is 140544419. The next prime is 140544473. The reversal of 140544468 is 864445041.

It is a happy number.

140544468 is a `hidden beast` number, since 140 + 54 + 4 + 468 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252046 + ... + 252602.

It is an arithmetic number, because the mean of its divisors is an integer number (5089084).

Almost surely, 2^140544468 is an apocalyptic number.

140544468 is a gapful number since it is divisible by the number (18) 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 140544468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183207024).

140544468 is an abundant number, since it is smaller than the sum of its proper divisors (225869580).

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

140544468 is a wasteful number, since it uses less digits than its factorization.

140544468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 140544468 is about 11855.1452121009. The cubic root of 140544468 is about 519.9216696608.

The spelling of 140544468 in words is "one hundred forty million, five hundred forty-four thousand, four hundred sixty-eight".