40766634 has 36 divisors (see below), whose sum is σ = 91512486. Its totient is φ = 13115424.

The previous prime is 40766617. The next prime is 40766651. The reversal of 40766634 is 43666704.

It is an interprime number because it is at equal distance from previous prime (40766617) and next prime (40766651).

It can be written as a sum of positive squares in 3 ways, for example, as 34187409 + 6579225 = 5847^2 + 2565^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13792 + ... + 16484.

Almost surely, 2^40766634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40766634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45756243).

40766634 is an abundant number, since it is smaller than the sum of its proper divisors (50745852).

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

40766634 is a wasteful number, since it uses less digits than its factorization.

40766634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759 (or 2727 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 40766634 is about 6384.8754099043. The cubic root of 40766634 is about 344.1662539169.

The spelling of 40766634 in words is "forty million, seven hundred sixty-six thousand, six hundred thirty-four".