7381871040 has 112 divisors (see below), whose sum is σ = 23458200480. Its totient is φ = 1966755840.

The previous prime is 7381871023. The next prime is 7381871069. The reversal of 7381871040 is 401781837.

It is a self number, because there is not a number n which added to its sum of digits gives 7381871040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369150 + ... + 1374530.

Almost surely, 2^7381871040 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 7381871040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11729100240).

7381871040 is an abundant number, since it is smaller than the sum of its proper divisors (16076329440).

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

7381871040 is a wasteful number, since it uses less digits than its factorization.

7381871040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830 (or 6820 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 7381871040 is about 85917.8156146908. The cubic root of 7381871040 is about 1947.1025159900.

The spelling of 7381871040 in words is "seven billion, three hundred eighty-one million, eight hundred seventy-one thousand, forty".