40326642 has 12 divisors (see below), whose sum is σ = 87374430. Its totient is φ = 13442208.

The previous prime is 40326631. The next prime is 40326661. The reversal of 40326642 is 24662304.

It can be written as a sum of positive squares in only one way, i.e., 32592681 + 7733961 = 5709^2 + 2781^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1120167 + ... + 1120202.

Almost surely, 2^40326642 is an apocalyptic number.

40326642 is an abundant number, since it is smaller than the sum of its proper divisors (47047788).

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

40326642 is a wasteful number, since it uses less digits than its factorization.

40326642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240377 (or 2240374 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 40326642 is about 6350.3261333572. The cubic root of 40326642 is about 342.9235834038.

Adding to 40326642 its reverse (24662304), we get a palindrome (64988946).

The spelling of 40326642 in words is "forty million, three hundred twenty-six thousand, six hundred forty-two".