140453444 has 12 divisors (see below), whose sum is σ = 246027264. Its totient is φ = 70159944.

The previous prime is 140453431. The next prime is 140453449. The reversal of 140453444 is 444354041.

It is a super-2 number, since 2×140453444² = 39454339862922272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (140453449) 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, 11804 + ... + 20499.

It is an arithmetic number, because the mean of its divisors is an integer number (20502272).

Almost surely, 2^140453444 is an apocalyptic number.

It is an amenable number.

140453444 is a deficient number, since it is larger than the sum of its proper divisors (105573820).

140453444 is a wasteful number, since it uses less digits than its factorization.

140453444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33394 (or 33392 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 140453444 is about 11851.3055820867. The cubic root of 140453444 is about 519.8094025348.

The spelling of 140453444 in words is "one hundred forty million, four hundred fifty-three thousand, four hundred forty-four".