140403726 has 64 divisors (see below), whose sum is σ = 320002560. Its totient is φ = 45619200.

The previous prime is 140403719. The next prime is 140403727. The reversal of 140403726 is 627304041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140403726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140403727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546190 + ... + 546446.

It is an arithmetic number, because the mean of its divisors is an integer number (5000040).

Almost surely, 2^140403726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140403726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160001280).

140403726 is an abundant number, since it is smaller than the sum of its proper divisors (179598834).

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

140403726 is a wasteful number, since it uses less digits than its factorization.

140403726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 480 counting only the distinct ones).

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

The square root of 140403726 is about 11849.2078216225. The cubic root of 140403726 is about 519.7480608945.

Adding to 140403726 its reverse (627304041), we get a palindrome (767707767).

It can be divided in two parts, 14040 and 3726, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 140403726 in words is "one hundred forty million, four hundred three thousand, seven hundred twenty-six".