40046432 has 48 divisors (see below), whose sum is σ = 81874800. Its totient is φ = 19266048.

The previous prime is 40046423. The next prime is 40046449. The reversal of 40046432 is 23464004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40046398 and 40046407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176303 + ... + 176529.

It is an arithmetic number, because the mean of its divisors is an integer number (1705725).

Almost surely, 2^40046432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40046432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40937400).

40046432 is an abundant number, since it is smaller than the sum of its proper divisors (41828368).

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

40046432 is a wasteful number, since it uses less digits than its factorization.

40046432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40046432 is about 6328.2250276045. The cubic root of 40046432 is about 342.1274675043.

The spelling of 40046432 in words is "forty million, forty-six thousand, four hundred thirty-two".