40647330 has 24 divisors (see below), whose sum is σ = 105683292. Its totient is φ = 10839264.

The previous prime is 40647329. The next prime is 40647331. The reversal of 40647330 is 3374604.

It is an interprime number because it is at equal distance from previous prime (40647329) and next prime (40647331).

It can be written as a sum of positive squares in 2 ways, for example, as 39200121 + 1447209 = 6261^2 + 1203^2 .

It is a super-2 number, since 2×40647330² = 3304410872257800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40647294 and 40647303.

It is not an unprimeable number, because it can be changed into a prime (40647331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225729 + ... + 225908.

Almost surely, 2^40647330 is an apocalyptic number.

40647330 is an abundant number, since it is smaller than the sum of its proper divisors (65035962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40647330 is a wasteful number, since it uses less digits than its factorization.

40647330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451650 (or 451647 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 40647330 is about 6375.5258606644. The cubic root of 40647330 is about 343.8301904376.

The spelling of 40647330 in words is "forty million, six hundred forty-seven thousand, three hundred thirty".