478032380040 has 32 divisors (see below), whose sum is σ = 1434097140480. Its totient is φ = 127475301312.

The previous prime is 478032380027. The next prime is 478032380047. The reversal of 478032380040 is 40083230874.

It is not an unprimeable number, because it can be changed into a prime (478032380047) 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, 1991801464 + ... + 1991801703.

It is an arithmetic number, because the mean of its divisors is an integer number (44815535640).

Almost surely, 2^478032380040 is an apocalyptic number.

478032380040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478032380040 is an abundant number, since it is smaller than the sum of its proper divisors (956064760440).

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

478032380040 is a wasteful number, since it uses less digits than its factorization.

478032380040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983603181 (or 3983603177 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 478032380040 in words is "four hundred seventy-eight billion, thirty-two million, three hundred eighty thousand, forty".