40478132 has 12 divisors (see below), whose sum is σ = 74565120. Its totient is φ = 19173816.

The previous prime is 40478101. The next prime is 40478147. The reversal of 40478132 is 23187404.

40478132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40478095 and 40478104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266228 + ... + 266379.

It is an arithmetic number, because the mean of its divisors is an integer number (6213760).

Almost surely, 2^40478132 is an apocalyptic number.

It is an amenable number.

40478132 is a deficient number, since it is larger than the sum of its proper divisors (34086988).

40478132 is a wasteful number, since it uses less digits than its factorization.

40478132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532630 (or 532628 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 40478132 is about 6362.2426863489. The cubic root of 40478132 is about 343.3524527219.

The spelling of 40478132 in words is "forty million, four hundred seventy-eight thousand, one hundred thirty-two".