40506680 has 32 divisors (see below), whose sum is σ = 95104800. Its totient is φ = 15497856.

The previous prime is 40506679. The next prime is 40506691. The reversal of 40506680 is 8660504.

It is a super-2 number, since 2×40506680² = 3281582249244800, which contains 22 as substring.

It is a congruent 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 in 7 ways as a sum of consecutive naturals, for example, 21095 + ... + 22934.

It is an arithmetic number, because the mean of its divisors is an integer number (2972025).

Almost surely, 2^40506680 is an apocalyptic number.

40506680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40506680 is an abundant number, since it is smaller than the sum of its proper divisors (54598120).

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

40506680 is a wasteful number, since it uses less digits than its factorization.

40506680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44063 (or 44059 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40506680 is about 6364.4858394060. The cubic root of 40506680 is about 343.4331524469.

The spelling of 40506680 in words is "forty million, five hundred six thousand, six hundred eighty".