40308486 has 32 divisors (see below), whose sum is σ = 82199040. Its totient is φ = 13175136.

The previous prime is 40308439. The next prime is 40308487. The reversal of 40308486 is 68480304.

It is a super-2 number, since 2×40308486² = 3249548087224392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40308487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131145 + ... + 131451.

It is an arithmetic number, because the mean of its divisors is an integer number (2568720).

Almost surely, 2^40308486 is an apocalyptic number.

40308486 is an abundant number, since it is smaller than the sum of its proper divisors (41890554).

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

40308486 is a wasteful number, since it uses less digits than its factorization.

40308486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 40308486 is about 6348.8964395397. The cubic root of 40308486 is about 342.8721115985.

The spelling of 40308486 in words is "forty million, three hundred eight thousand, four hundred eighty-six".