4978040 has 32 divisors (see below), whose sum is σ = 11324880. Its totient is φ = 1969152.

The previous prime is 4978031. The next prime is 4978069. The reversal of 4978040 is 408794.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4977988 and 4978006.

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, 3239 + ... + 4521.

Almost surely, 2^4978040 is an apocalyptic number.

4978040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4978040 is an abundant number, since it is smaller than the sum of its proper divisors (6346840).

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

4978040 is a wasteful number, since it uses less digits than its factorization.

4978040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 4978040 is about 2231.1521687236. The cubic root of 4978040 is about 170.7468867937.

The spelling of 4978040 in words is "four million, nine hundred seventy-eight thousand, forty".