4081777240 has 32 divisors (see below), whose sum is σ = 9185892480. Its totient is φ = 1632374272.

The previous prime is 4081777213. The next prime is 4081777253. The reversal of 4081777240 is 427771804.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4081777193 and 4081777202.

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, 296592 + ... + 310048.

It is an arithmetic number, because the mean of its divisors is an integer number (287059140).

Almost surely, 2^4081777240 is an apocalyptic number.

4081777240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4081777240 is an abundant number, since it is smaller than the sum of its proper divisors (5104115240).

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

4081777240 is a wasteful number, since it uses less digits than its factorization.

4081777240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21051 (or 21047 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 4081777240 is about 63888.7880617562. The cubic root of 4081777240 is about 1598.1459304712.

The spelling of 4081777240 in words is "four billion, eighty-one million, seven hundred seventy-seven thousand, two hundred forty".