4945438 has 4 divisors (see below), whose sum is σ = 7418160. Its totient is φ = 2472718.

The previous prime is 4945411. The next prime is 4945469. The reversal of 4945438 is 8345494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8345494 = 2 ⋅4172747.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4945397 and 4945406.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1236358 + ... + 1236361.

It is an arithmetic number, because the mean of its divisors is an integer number (1854540).

Almost surely, 2^4945438 is an apocalyptic number.

4945438 is a deficient number, since it is larger than the sum of its proper divisors (2472722).

4945438 is a wasteful number, since it uses less digits than its factorization.

4945438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472721.

The product of its digits is 69120, while the sum is 37.

The square root of 4945438 is about 2223.8340765444. The cubic root of 4945438 is about 170.3733203030.

The spelling of 4945438 in words is "four million, nine hundred forty-five thousand, four hundred thirty-eight".