4155442 has 8 divisors (see below), whose sum is σ = 6335532. Its totient is φ = 2043600.

The previous prime is 4155427. The next prime is 4155467. The reversal of 4155442 is 2445514.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2468041 + 1687401 = 1571^2 + 1299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16909 + ... + 17152.

Almost surely, 2^4155442 is an apocalyptic number.

4155442 is a deficient number, since it is larger than the sum of its proper divisors (2180090).

4155442 is a wasteful number, since it uses less digits than its factorization.

4155442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34124.

The product of its digits is 3200, while the sum is 25.

The square root of 4155442 is about 2038.4901275209. The cubic root of 4155442 is about 160.7702701982.

The spelling of 4155442 in words is "four million, one hundred fifty-five thousand, four hundred forty-two".