140433456 has 80 divisors (see below), whose sum is σ = 372833280. Its totient is φ = 45534720.

The previous prime is 140433451. The next prime is 140433479. The reversal of 140433456 is 654334041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140433451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303081 + ... + 303543.

It is an arithmetic number, because the mean of its divisors is an integer number (4660416).

Almost surely, 2^140433456 is an apocalyptic number.

140433456 is a gapful number since it is divisible by the number (16) 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 140433456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186416640).

140433456 is an abundant number, since it is smaller than the sum of its proper divisors (232399824).

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

140433456 is a wasteful number, since it uses less digits than its factorization.

140433456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 140433456 is about 11850.4622694644. The cubic root of 140433456 is about 519.7847432528.

Adding to 140433456 its reverse (654334041), we get a palindrome (794767497).

The spelling of 140433456 in words is "one hundred forty million, four hundred thirty-three thousand, four hundred fifty-six".