140420626 has 8 divisors (see below), whose sum is σ = 211512960. Its totient is φ = 69916308.

The previous prime is 140420617. The next prime is 140420627. The reversal of 140420626 is 626024041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140420626.

It is not an unprimeable number, because it can be changed into a prime (140420627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146406 + ... + 147361.

It is an arithmetic number, because the mean of its divisors is an integer number (26439120).

Almost surely, 2^140420626 is an apocalyptic number.

140420626 is a deficient number, since it is larger than the sum of its proper divisors (71092334).

140420626 is a wasteful number, since it uses less digits than its factorization.

140420626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294008.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 140420626 is about 11849.9209280062. The cubic root of 140420626 is about 519.7689135933.

Adding to 140420626 its reverse (626024041), we get a palindrome (766444667).

The spelling of 140420626 in words is "one hundred forty million, four hundred twenty thousand, six hundred twenty-six".