4978480 has 40 divisors (see below), whose sum is σ = 12467952. Its totient is φ = 1837824.

The previous prime is 4978471. The next prime is 4978483. The reversal of 4978480 is 848794.

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

It is a super-2 number, since 2×4978480² = 49570526220800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4978483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354 + ... + 3433.

Almost surely, 2^4978480 is an apocalyptic number.

4978480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4978480 is an abundant number, since it is smaller than the sum of its proper divisors (7489472).

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

4978480 is a wasteful number, since it uses less digits than its factorization.

4978480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813 (or 4807 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 4978480 is about 2231.2507703080. The cubic root of 4978480 is about 170.7519173156.

The spelling of 4978480 in words is "four million, nine hundred seventy-eight thousand, four hundred eighty".