4081297788 has 36 divisors (see below), whose sum is σ = 10318840168. Its totient is φ = 1360139040.

The previous prime is 4081297783. The next prime is 4081297811. The reversal of 4081297788 is 8877921804.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081297783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214470 + ... + 232722.

Almost surely, 2^4081297788 is an apocalyptic number.

It is an amenable number.

4081297788 is an abundant number, since it is smaller than the sum of its proper divisors (6237542380).

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

4081297788 is a wasteful number, since it uses less digits than its factorization.

4081297788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24474 (or 24469 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The square root of 4081297788 is about 63885.0357125986. The cubic root of 4081297788 is about 1598.0833544396.

The spelling of 4081297788 in words is "four billion, eighty-one million, two hundred ninety-seven thousand, seven hundred eighty-eight".