40621136 has 10 divisors (see below), whose sum is σ = 78703482. Its totient is φ = 20310560.

The previous prime is 40621121. The next prime is 40621223. The reversal of 40621136 is 63112604.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35331136 + 5290000 = 5944^2 + 2300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269395 + ... + 1269426.

Almost surely, 2^40621136 is an apocalyptic number.

It is an amenable number.

40621136 is a deficient number, since it is larger than the sum of its proper divisors (38082346).

40621136 is a wasteful number, since it uses less digits than its factorization.

40621136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538829 (or 2538823 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40621136 is about 6373.4712676845. The cubic root of 40621136 is about 343.7563174156.

The spelling of 40621136 in words is "forty million, six hundred twenty-one thousand, one hundred thirty-six".