906406840 has 32 divisors (see below), whose sum is σ = 2043468000. Its totient is φ = 361842304.

The previous prime is 906406817. The next prime is 906406841. The reversal of 906406840 is 48604609.

906406840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 906406840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906406841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1900 + ... + 42619.

It is an arithmetic number, because the mean of its divisors is an integer number (63858375).

Almost surely, 2^906406840 is an apocalyptic number.

It is an amenable number.

906406840 is an abundant number, since it is smaller than the sum of its proper divisors (1137061160).

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

906406840 is a wasteful number, since it uses less digits than its factorization.

906406840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45039 (or 45035 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 906406840 is about 30106.5913048953. The cubic root of 906406840 is about 967.7749829866.

The spelling of 906406840 in words is "nine hundred six million, four hundred six thousand, eight hundred forty".