40653136 has 10 divisors (see below), whose sum is σ = 78765482. Its totient is φ = 20326560.

The previous prime is 40653131. The next prime is 40653139. The reversal of 40653136 is 63135604.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 18147600 = 4744^2 + 4260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40653131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270395 + ... + 1270426.

Almost surely, 2^40653136 is an apocalyptic number.

It is an amenable number.

40653136 is a deficient number, since it is larger than the sum of its proper divisors (38112346).

40653136 is a wasteful number, since it uses less digits than its factorization.

40653136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540829 (or 2540823 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 40653136 is about 6375.9811793951. The cubic root of 40653136 is about 343.8465603775.

The spelling of 40653136 in words is "forty million, six hundred fifty-three thousand, one hundred thirty-six".