40661726 has 8 divisors (see below), whose sum is σ = 69705840. Its totient is φ = 17426448.

The previous prime is 40661713. The next prime is 40661743. The reversal of 40661726 is 62716604.

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

It is a super-2 number, since 2×40661726² = 3306751922598152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40661692 and 40661701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452191 + ... + 1452218.

It is an arithmetic number, because the mean of its divisors is an integer number (8713230).

Almost surely, 2^40661726 is an apocalyptic number.

40661726 is a deficient number, since it is larger than the sum of its proper divisors (29044114).

40661726 is a wasteful number, since it uses less digits than its factorization.

40661726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904418.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40661726 is about 6376.6547656275. The cubic root of 40661726 is about 343.8707769098.

The spelling of 40661726 in words is "forty million, six hundred sixty-one thousand, seven hundred twenty-six".