140420734 has 8 divisors (see below), whose sum is σ = 212239368. Its totient is φ = 69674280.

The previous prime is 140420713. The next prime is 140420737. The reversal of 140420734 is 437024041.

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

It is a junction number, because it is equal to n+sod(n) for n = 140420699 and 140420708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140420737) 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, 267717 + ... + 268240.

It is an arithmetic number, because the mean of its divisors is an integer number (26529921).

Almost surely, 2^140420734 is an apocalyptic number.

140420734 is a deficient number, since it is larger than the sum of its proper divisors (71818634).

140420734 is a wasteful number, since it uses less digits than its factorization.

140420734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536090.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 140420734 is about 11849.9254849978. The cubic root of 140420734 is about 519.7690468478.

Adding to 140420734 its reverse (437024041), we get a palindrome (577444775).

The spelling of 140420734 in words is "one hundred forty million, four hundred twenty thousand, seven hundred thirty-four".