1994086480 has 40 divisors (see below), whose sum is σ = 4880268000. Its totient is φ = 755653248.

The previous prime is 1994086477. The next prime is 1994086481. The reversal of 1994086480 is 846804991.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994086481) 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, 654430 + ... + 657469.

It is an arithmetic number, because the mean of its divisors is an integer number (122006700).

Almost surely, 2^1994086480 is an apocalyptic number.

1994086480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1994086480 is an abundant number, since it is smaller than the sum of its proper divisors (2886181520).

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

1994086480 is a wasteful number, since it uses less digits than its factorization.

1994086480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311931 (or 1311925 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 1994086480 is about 44655.1954424118. The cubic root of 1994086480 is about 1258.6780626292.

The spelling of 1994086480 in words is "one billion, nine hundred ninety-four million, eighty-six thousand, four hundred eighty".