40634946 has 72 divisors (see below), whose sum is σ = 100503312. Its totient is φ = 12295800.

The previous prime is 40634929. The next prime is 40634959. The reversal of 40634946 is 64943604.

It is a self number, because there is not a number n which added to its sum of digits gives 40634946.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58461 + ... + 59151.

Almost surely, 2^40634946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40634946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50251656).

40634946 is an abundant number, since it is smaller than the sum of its proper divisors (59868366).

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

40634946 is a wasteful number, since it uses less digits than its factorization.

40634946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 40634946 is about 6374.5545726741. The cubic root of 40634946 is about 343.7952687049.

It can be divided in two parts, 4063 and 4946, that added together give a palindrome (9009).

The spelling of 40634946 in words is "forty million, six hundred thirty-four thousand, nine hundred forty-six".