140424216 has 32 divisors (see below), whose sum is σ = 371712240. Its totient is φ = 44054528.

The previous prime is 140424191. The next prime is 140424241. The reversal of 140424216 is 612424041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (140424191) and next prime (140424241).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171681 + ... + 172496.

Almost surely, 2^140424216 is an apocalyptic number.

It is an amenable number.

140424216 is an abundant number, since it is smaller than the sum of its proper divisors (231288024).

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

140424216 is a wasteful number, since it uses less digits than its factorization.

140424216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344203 (or 344199 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 140424216 is about 11850.0724048421. The cubic root of 140424216 is about 519.7733430340.

Adding to 140424216 its reverse (612424041), we get a palindrome (752848257).

The spelling of 140424216 in words is "one hundred forty million, four hundred twenty-four thousand, two hundred sixteen".