140340442 has 8 divisors (see below), whose sum is σ = 229648032. Its totient is φ = 63791100.

The previous prime is 140340437. The next prime is 140340481. The reversal of 140340442 is 244043041.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 6379111 = 140340442 / (1 + 4 + 0 + 3 + 4 + 0 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3189534 + ... + 3189577.

It is an arithmetic number, because the mean of its divisors is an integer number (28706004).

Almost surely, 2^140340442 is an apocalyptic number.

140340442 is a deficient number, since it is larger than the sum of its proper divisors (89307590).

140340442 is a wasteful number, since it uses less digits than its factorization.

140340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379124.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 140340442 is about 11846.5371311620. The cubic root of 140340442 is about 519.6699606897.

Adding to 140340442 its reverse (244043041), we get a palindrome (384383483).

The spelling of 140340442 in words is "one hundred forty million, three hundred forty thousand, four hundred forty-two".