4155438 has 16 divisors (see below), whose sum is σ = 9498240. Its totient is φ = 1187256.

The previous prime is 4155427. The next prime is 4155467. The reversal of 4155438 is 8345514.

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 in 7 ways as a sum of consecutive naturals, for example, 49428 + ... + 49511.

It is an arithmetic number, because the mean of its divisors is an integer number (593640).

Almost surely, 2^4155438 is an apocalyptic number.

4155438 is an abundant number, since it is smaller than the sum of its proper divisors (5342802).

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

4155438 is a wasteful number, since it uses less digits than its factorization.

4155438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98951.

The product of its digits is 9600, while the sum is 30.

The square root of 4155438 is about 2038.4891464023. The cubic root of 4155438 is about 160.7702186127.

The spelling of 4155438 in words is "four million, one hundred fifty-five thousand, four hundred thirty-eight".