4478722 has 4 divisors (see below), whose sum is σ = 6718086. Its totient is φ = 2239360.

The previous prime is 4478707. The next prime is 4478741. The reversal of 4478722 is 2278744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4004001 + 474721 = 2001^2 + 689^2 .

It is a d-powerful number, because it can be written as 4⁵ + 4⁷ + 7⁴ + 8² + 7⁴ + 2¹⁸ + 2²² .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119679 + ... + 1119682.

Almost surely, 2^4478722 is an apocalyptic number.

4478722 is a deficient number, since it is larger than the sum of its proper divisors (2239364).

4478722 is a wasteful number, since it uses less digits than its factorization.

4478722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239363.

The product of its digits is 25088, while the sum is 34.

The square root of 4478722 is about 2116.2991281953. The cubic root of 4478722 is about 164.8357348985.

The spelling of 4478722 in words is "four million, four hundred seventy-eight thousand, seven hundred twenty-two".