7438785840 has 60 divisors (see below), whose sum is σ = 24981924864. Its totient is φ = 1983676032.

The previous prime is 7438785839. The next prime is 7438785883. The reversal of 7438785840 is 485878347.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5165104 + ... + 5166543.

Almost surely, 2^7438785840 is an apocalyptic number.

It is an amenable number.

7438785840 is an abundant number, since it is smaller than the sum of its proper divisors (17543139024).

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

7438785840 is a wasteful number, since it uses less digits than its factorization.

7438785840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331666 (or 10331657 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The square root of 7438785840 is about 86248.3961590011. The cubic root of 7438785840 is about 1952.0938140771.

The spelling of 7438785840 in words is "seven billion, four hundred thirty-eight million, seven hundred eighty-five thousand, eight hundred forty".