40581282 has 16 divisors (see below), whose sum is σ = 92757312. Its totient is φ = 11594640.

The previous prime is 40581253. The next prime is 40581301. The reversal of 40581282 is 28218504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483069 + ... + 483152.

It is an arithmetic number, because the mean of its divisors is an integer number (5797332).

Almost surely, 2^40581282 is an apocalyptic number.

40581282 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40581282 is an abundant number, since it is smaller than the sum of its proper divisors (52176030).

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

40581282 is a wasteful number, since it uses less digits than its factorization.

40581282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966233.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 40581282 is about 6370.3439467583. The cubic root of 40581282 is about 343.6438591528.

Adding to 40581282 its reverse (28218504), we get a palindrome (68799786).

The spelling of 40581282 in words is "forty million, five hundred eighty-one thousand, two hundred eighty-two".