140443254 has 64 divisors (see below), whose sum is σ = 361774080. Its totient is φ = 39553920.

The previous prime is 140443253. The next prime is 140443283. The reversal of 140443254 is 452344041.

It is a happy number.

140443254 is a `hidden beast` number, since 1 + 404 + 4 + 3 + 254 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140443253) 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, 24222 + ... + 29454.

It is an arithmetic number, because the mean of its divisors is an integer number (5652720).

Almost surely, 2^140443254 is an apocalyptic number.

140443254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140443254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180887040).

140443254 is an abundant number, since it is smaller than the sum of its proper divisors (221330826).

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

140443254 is a wasteful number, since it uses less digits than its factorization.

140443254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322 (or 5316 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 140443254 is about 11850.8756638486. The cubic root of 140443254 is about 519.7968313801.

Adding to 140443254 its reverse (452344041), we get a palindrome (592787295).

The spelling of 140443254 in words is "one hundred forty million, four hundred forty-three thousand, two hundred fifty-four".