140720826 has 32 divisors (see below), whose sum is σ = 285769728. Its totient is φ = 46191600.

The previous prime is 140720819. The next prime is 140720863. The reversal of 140720826 is 628027041.

140720826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 140720793 and 140720802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114451 + ... + 115673.

It is an arithmetic number, because the mean of its divisors is an integer number (8930304).

Almost surely, 2^140720826 is an apocalyptic number.

140720826 is an abundant number, since it is smaller than the sum of its proper divisors (145048902).

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

140720826 is a wasteful number, since it uses less digits than its factorization.

140720826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 140720826 is about 11862.5809164785. The cubic root of 140720826 is about 520.1390481209.

Adding to 140720826 its reverse (628027041), we get a palindrome (768747867).

The spelling of 140720826 in words is "one hundred forty million, seven hundred twenty thousand, eight hundred twenty-six".