40726081 has 4 divisors (see below), whose sum is σ = 44428464. Its totient is φ = 37023700.

The previous prime is 40726073. The next prime is 40726087. The reversal of 40726081 is 18062704.

40726081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40726081 - 2³ = 40726073 is a prime.

It is a super-2 number, since 2×40726081² = 3317227347237122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40726087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851175 + ... + 1851196.

It is an arithmetic number, because the mean of its divisors is an integer number (11107116).

Almost surely, 2^40726081 is an apocalyptic number.

It is an amenable number.

40726081 is a deficient number, since it is larger than the sum of its proper divisors (3702383).

40726081 is a wasteful number, since it uses less digits than its factorization.

40726081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702382.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 40726081 is about 6381.6989117319. The cubic root of 40726081 is about 344.0520951615.

Adding to 40726081 its reverse (18062704), we get a palindrome (58788785).

It can be divided in two parts, 4072 and 6081, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 40726081 in words is "forty million, seven hundred twenty-six thousand, eighty-one".