40681532 has 6 divisors (see below), whose sum is σ = 71192688. Its totient is φ = 20340764.

The previous prime is 40681499. The next prime is 40681559. The reversal of 40681532 is 23518604.

It is a junction number, because it is equal to n+sod(n) for n = 40681495 and 40681504.

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 as a sum of consecutive naturals, namely, 5085188 + ... + 5085195.

It is an arithmetic number, because the mean of its divisors is an integer number (11865448).

Almost surely, 2^40681532 is an apocalyptic number.

It is an amenable number.

40681532 is a deficient number, since it is larger than the sum of its proper divisors (30511156).

40681532 is a wasteful number, since it uses less digits than its factorization.

40681532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170387 (or 10170385 counting only the distinct ones).

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

The square root of 40681532 is about 6378.2075852076. The cubic root of 40681532 is about 343.9266000779.

The spelling of 40681532 in words is "forty million, six hundred eighty-one thousand, five hundred thirty-two".