4047037940 has 24 divisors (see below), whose sum is σ = 9271396512. Its totient is φ = 1471650080.

The previous prime is 4047037927. The next prime is 4047037961. The reversal of 4047037940 is 497307404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4047037894 and 4047037903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9197594 + ... + 9198033.

It is an arithmetic number, because the mean of its divisors is an integer number (386308188).

Almost surely, 2^4047037940 is an apocalyptic number.

It is an amenable number.

4047037940 is an abundant number, since it is smaller than the sum of its proper divisors (5224358572).

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

4047037940 is a wasteful number, since it uses less digits than its factorization.

4047037940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18395647 (or 18395645 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 4047037940 is about 63616.3339088319. Note that the first 3 decimals coincide. The cubic root of 4047037940 is about 1593.5991591907.

The spelling of 4047037940 in words is "four billion, forty-seven million, thirty-seven thousand, nine hundred forty".