40670840 has 32 divisors (see below), whose sum is σ = 104582880. Its totient is φ = 13944192.

The previous prime is 40670837. The next prime is 40670863. The reversal of 40670840 is 4807604.

40670840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 72347 + ... + 72906.

It is an arithmetic number, because the mean of its divisors is an integer number (3268215).

Almost surely, 2^40670840 is an apocalyptic number.

40670840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40670840 is an abundant number, since it is smaller than the sum of its proper divisors (63912040).

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

40670840 is a wasteful number, since it uses less digits than its factorization.

40670840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145271 (or 145267 counting only the distinct ones).

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

The square root of 40670840 is about 6377.3693636169. The cubic root of 40670840 is about 343.8964669501.

The spelling of 40670840 in words is "forty million, six hundred seventy thousand, eight hundred forty".