140042822 has 4 divisors (see below), whose sum is σ = 210064236. Its totient is φ = 70021410.

The previous prime is 140042803. The next prime is 140042843. The reversal of 140042822 is 228240041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228240041 = 383 ⋅595927.

It is a super-2 number, since 2×140042822² = 39223983987447368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35010704 + ... + 35010707.

It is an arithmetic number, because the mean of its divisors is an integer number (52516059).

Almost surely, 2^140042822 is an apocalyptic number.

140042822 is a deficient number, since it is larger than the sum of its proper divisors (70021414).

140042822 is an equidigital number, since it uses as much as digits as its factorization.

140042822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70021413.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 140042822 is about 11833.9689876220. The cubic root of 140042822 is about 519.3023459746.

Adding to 140042822 its reverse (228240041), we get a palindrome (368282863).

The spelling of 140042822 in words is "one hundred forty million, forty-two thousand, eight hundred twenty-two".