40781426 has 24 divisors (see below), whose sum is σ = 72233136. Its totient is φ = 17214120.

The previous prime is 40781423. The next prime is 40781431. The reversal of 40781426 is 62418704.

40781426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40781392 and 40781401.

It is not an unprimeable number, because it can be changed into a prime (40781423) 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 11 ways as a sum of consecutive naturals, for example, 3461 + ... + 9671.

It is an arithmetic number, because the mean of its divisors is an integer number (3009714).

Almost surely, 2^40781426 is an apocalyptic number.

40781426 is a deficient number, since it is larger than the sum of its proper divisors (31451710).

40781426 is a wasteful number, since it uses less digits than its factorization.

40781426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294 (or 6287 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40781426 is about 6386.0336673087. The cubic root of 40781426 is about 344.2078753045.

The spelling of 40781426 in words is "forty million, seven hundred eighty-one thousand, four hundred twenty-six".