40684532 has 12 divisors (see below), whose sum is σ = 81369120. Its totient is φ = 17436216.

The previous prime is 40684531. The next prime is 40684537. The reversal of 40684532 is 23548604.

40684532 is an admirable number.

It is a super-2 number, since 2×40684532² = 3310462288118048, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40684531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726482 + ... + 726537.

It is an arithmetic number, because the mean of its divisors is an integer number (6780760).

Almost surely, 2^40684532 is an apocalyptic number.

It is an amenable number.

40684532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40684532 is a wasteful number, since it uses less digits than its factorization.

40684532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453030 (or 1453028 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 40684532 is about 6378.4427566609. The cubic root of 40684532 is about 343.9350539912.

The spelling of 40684532 in words is "forty million, six hundred eighty-four thousand, five hundred thirty-two".