140026890 has 32 divisors (see below), whose sum is σ = 344264256. Its totient is φ = 36429440.

The previous prime is 140026879. The next prime is 140026891. The reversal of 140026890 is 98620041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (140026891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55692 + ... + 58151.

It is an arithmetic number, because the mean of its divisors is an integer number (10758258).

Almost surely, 2^140026890 is an apocalyptic number.

140026890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140026890 is an abundant number, since it is smaller than the sum of its proper divisors (204237366).

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

140026890 is a wasteful number, since it uses less digits than its factorization.

140026890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113894.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 140026890 is about 11833.2958215368. The cubic root of 140026890 is about 519.2826523822.

The spelling of 140026890 in words is "one hundred forty million, twenty-six thousand, eight hundred ninety".