140420673 has 12 divisors (see below), whose sum is σ = 202966608. Its totient is φ = 93550680.

The previous prime is 140420627. The next prime is 140420713. The reversal of 140420673 is 376024041.

It is not a de Polignac number, because 140420673 - 2⁸ = 140420417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140420473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11718 + ... + 20448.

It is an arithmetic number, because the mean of its divisors is an integer number (16913884).

Almost surely, 2^140420673 is an apocalyptic number.

It is an amenable number.

140420673 is a deficient number, since it is larger than the sum of its proper divisors (62545935).

140420673 is a wasteful number, since it uses less digits than its factorization.

140420673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524 (or 10521 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 140420673 is about 11849.9229111417. The cubic root of 140420673 is about 519.7689715837.

The spelling of 140420673 in words is "one hundred forty million, four hundred twenty thousand, six hundred seventy-three".