934245840 has 240 divisors, whose sum is σ = 3248792064. Its totient is φ = 221844480.

The previous prime is 934245811. The next prime is 934245841. The reversal of 934245840 is 48542439.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (934245841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1538817 + ... + 1539423.

Almost surely, 2^934245840 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 934245840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624396032).

934245840 is an abundant number, since it is smaller than the sum of its proper divisors (2314546224).

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

934245840 is a wasteful number, since it uses less digits than its factorization.

934245840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 934245840 is about 30565.4353805078. The cubic root of 934245840 is about 977.5831881287.

The spelling of 934245840 in words is "nine hundred thirty-four million, two hundred forty-five thousand, eight hundred forty".