3557438 has 4 divisors (see below), whose sum is σ = 5336160. Its totient is φ = 1778718.

The previous prime is 3557431. The next prime is 3557441. The reversal of 3557438 is 8347553.

3557438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 3557398 and 3557407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 889358 + ... + 889361.

It is an arithmetic number, because the mean of its divisors is an integer number (1334040).

Almost surely, 2^3557438 is an apocalyptic number.

3557438 is a deficient number, since it is larger than the sum of its proper divisors (1778722).

3557438 is a wasteful number, since it uses less digits than its factorization.

3557438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778721.

The product of its digits is 50400, while the sum is 35.

The square root of 3557438 is about 1886.1171755753. The cubic root of 3557438 is about 152.6554966837.

The spelling of 3557438 in words is "three million, five hundred fifty-seven thousand, four hundred thirty-eight".