4050420640 has 48 divisors (see below), whose sum is σ = 10936138752. Its totient is φ = 1388715264.

The previous prime is 4050420637. The next prime is 4050420641. The reversal of 4050420640 is 460240504.

It is not an unprimeable number, because it can be changed into a prime (4050420641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807104 + ... + 1809343.

It is an arithmetic number, because the mean of its divisors is an integer number (227836224).

Almost surely, 2^4050420640 is an apocalyptic number.

4050420640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4050420640 is an abundant number, since it is smaller than the sum of its proper divisors (6885718112).

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

4050420640 is a wasteful number, since it uses less digits than its factorization.

4050420640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616469 (or 3616461 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4050420640 is about 63642.9150809420. The cubic root of 4050420640 is about 1594.0430366413.

The spelling of 4050420640 in words is "four billion, fifty million, four hundred twenty thousand, six hundred forty".