4905438 has 16 divisors (see below), whose sum is σ = 9837840. Its totient is φ = 1630656.

The previous prime is 4905431. The next prime is 4905473. The reversal of 4905438 is 8345094.

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 = 4905399 and 4905408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4905431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 3636.

It is an arithmetic number, because the mean of its divisors is an integer number (614865).

Almost surely, 2^4905438 is an apocalyptic number.

4905438 is an abundant number, since it is smaller than the sum of its proper divisors (4932402).

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

4905438 is a wasteful number, since it uses less digits than its factorization.

4905438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 4905438 is about 2214.8223405050. The cubic root of 4905438 is about 169.9127349125.

The spelling of 4905438 in words is "four million, nine hundred five thousand, four hundred thirty-eight".