140424407 has 8 divisors (see below), whose sum is σ = 146649696. Its totient is φ = 134209152.

The previous prime is 140424397. The next prime is 140424419. The reversal of 140424407 is 704424041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140424407 - 2¹² = 140420311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47723 + ... + 50579.

It is an arithmetic number, because the mean of its divisors is an integer number (18331212).

Almost surely, 2^140424407 is an apocalyptic number.

140424407 is a deficient number, since it is larger than the sum of its proper divisors (6225289).

140424407 is a wasteful number, since it uses less digits than its factorization.

140424407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 140424407 is about 11850.0804638618. The cubic root of 140424407 is about 519.7735786929.

Adding to 140424407 its reverse (704424041), we get a palindrome (844848448).

The spelling of 140424407 in words is "one hundred forty million, four hundred twenty-four thousand, four hundred seven".