40680426 has 16 divisors (see below), whose sum is σ = 81595584. Its totient is φ = 13521024.

The previous prime is 40680421. The next prime is 40680449. The reversal of 40680426 is 62408604.

It is a junction number, because it is equal to n+sod(n) for n = 40680393 and 40680402.

It is not an unprimeable number, because it can be changed into a prime (40680421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7486 + ... + 11721.

It is an arithmetic number, because the mean of its divisors is an integer number (5099724).

Almost surely, 2^40680426 is an apocalyptic number.

40680426 is an abundant number, since it is smaller than the sum of its proper divisors (40915158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40680426 is a wasteful number, since it uses less digits than its factorization.

40680426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 40680426 is about 6378.1208831442. The cubic root of 40680426 is about 343.9234832970.

The spelling of 40680426 in words is "forty million, six hundred eighty thousand, four hundred twenty-six".