40055632 has 10 divisors (see below), whose sum is σ = 77607818. Its totient is φ = 20027808.

The previous prime is 40055597. The next prime is 40055633. The reversal of 40055632 is 23655004.

It can be written as a sum of positive squares in only one way, i.e., 35712576 + 4343056 = 5976^2 + 2084^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40055597 and 40055606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055633) by changing a digit.

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, 1251723 + ... + 1251754.

Almost surely, 2^40055632 is an apocalyptic number.

It is an amenable number.

40055632 is a deficient number, since it is larger than the sum of its proper divisors (37552186).

40055632 is a wasteful number, since it uses less digits than its factorization.

40055632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503485 (or 2503479 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 40055632 is about 6328.9518879511. The cubic root of 40055632 is about 342.1536648586.

The spelling of 40055632 in words is "forty million, fifty-five thousand, six hundred thirty-two".