4780042 has 4 divisors (see below), whose sum is σ = 7170066. Its totient is φ = 2390020.

The previous prime is 4780037. The next prime is 4780051. The reversal of 4780042 is 2400874.

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., 4157521 + 622521 = 2039^2 + 789^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4779989 and 4780016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195009 + ... + 1195012.

Almost surely, 2^4780042 is an apocalyptic number.

4780042 is a deficient number, since it is larger than the sum of its proper divisors (2390024).

4780042 is a wasteful number, since it uses less digits than its factorization.

4780042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390023.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 4780042 is about 2186.3307160629. The cubic root of 4780042 is about 168.4524134275.

It can be divided in two parts, 47 and 80042, that added together give a square (80089 = 283²).

The spelling of 4780042 in words is "four million, seven hundred eighty thousand, forty-two".