40426688 has 14 divisors (see below), whose sum is σ = 80221836. Its totient is φ = 20213312.

The previous prime is 40426679. The next prime is 40426717. The reversal of 40426688 is 88662404.

It is a happy number.

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, 315770 + ... + 315897.

Almost surely, 2^40426688 is an apocalyptic number.

It is an amenable number.

40426688 is a deficient number, since it is larger than the sum of its proper divisors (39795148).

40426688 is an equidigital number, since it uses as much as digits as its factorization.

40426688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631679 (or 631669 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 40426688 is about 6358.1984869930. The cubic root of 40426688 is about 343.2069345465.

It can be divided in two parts, 40426 and 688, that added together give a palindrome (41114).

The spelling of 40426688 in words is "forty million, four hundred twenty-six thousand, six hundred eighty-eight".