40102726 has 4 divisors (see below), whose sum is σ = 60154092. Its totient is φ = 20051362.

The previous prime is 40102723. The next prime is 40102739. The reversal of 40102726 is 62720104.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) 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 = 40102697 and 40102706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025680 + ... + 10025683.

It is an arithmetic number, because the mean of its divisors is an integer number (15038523).

Almost surely, 2^40102726 is an apocalyptic number.

40102726 is a deficient number, since it is larger than the sum of its proper divisors (20051366).

40102726 is a wasteful number, since it uses less digits than its factorization.

40102726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20051365.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 40102726 is about 6332.6713162772. The cubic root of 40102726 is about 342.2877040527.

The spelling of 40102726 in words is "forty million, one hundred two thousand, seven hundred twenty-six".