4778454 has 8 divisors (see below), whose sum is σ = 9556920. Its totient is φ = 1592816.

The previous prime is 4778453. The next prime is 4778467. The reversal of 4778454 is 4548774.

It is a sphenic number, since it is the product of 3 distinct primes.

4778454 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398199 + ... + 398210.

It is an arithmetic number, because the mean of its divisors is an integer number (1194615).

Almost surely, 2^4778454 is an apocalyptic number.

4778454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4778454 is a wasteful number, since it uses less digits than its factorization.

4778454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796414.

The product of its digits is 125440, while the sum is 39.

The square root of 4778454 is about 2185.9675203443. The cubic root of 4778454 is about 168.4337572413.

The spelling of 4778454 in words is "four million, seven hundred seventy-eight thousand, four hundred fifty-four".