40477636 has 6 divisors (see below), whose sum is σ = 70835870. Its totient is φ = 20238816.

The previous prime is 40477601. The next prime is 40477639. The reversal of 40477636 is 63677404.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 3802500 = 6056^2 + 1950^2 .

It is a super-2 number, since 2×40477636² = 3276878032296992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40477595 and 40477604.

It is not an unprimeable number, because it can be changed into a prime (40477639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5059701 + ... + 5059708.

Almost surely, 2^40477636 is an apocalyptic number.

It is an amenable number.

40477636 is a deficient number, since it is larger than the sum of its proper divisors (30358234).

40477636 is a wasteful number, since it uses less digits than its factorization.

40477636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10119413 (or 10119411 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 40477636 is about 6362.2037062640. The cubic root of 40477636 is about 343.3510502896.

The spelling of 40477636 in words is "forty million, four hundred seventy-seven thousand, six hundred thirty-six".