40161026 has 4 divisors (see below), whose sum is σ = 60241542. Its totient is φ = 20080512.

The previous prime is 40161019. The next prime is 40161031. The reversal of 40161026 is 62016104.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 24990001 + 15171025 = 4999^2 + 3895^2 .

It is a super-2 number, since 2×40161026² = 3225816018745352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40160989 and 40161007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10040255 + ... + 10040258.

Almost surely, 2^40161026 is an apocalyptic number.

40161026 is a deficient number, since it is larger than the sum of its proper divisors (20080516).

40161026 is a wasteful number, since it uses less digits than its factorization.

40161026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080515.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40161026 is about 6337.2727572671. The cubic root of 40161026 is about 342.4534925396.

The spelling of 40161026 in words is "forty million, one hundred sixty-one thousand, twenty-six".