155442342 has 32 divisors (see below), whose sum is σ = 341251200. Its totient is φ = 46811520.

The previous prime is 155442323. The next prime is 155442361. The reversal of 155442342 is 243244551.

155442342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155442323) and next prime (155442361).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3534 + ... + 17982.

It is an arithmetic number, because the mean of its divisors is an integer number (10664100).

Almost surely, 2^155442342 is an apocalyptic number.

155442342 is an abundant number, since it is smaller than the sum of its proper divisors (185808858).

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

155442342 is a wasteful number, since it uses less digits than its factorization.

155442342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14628.

The product of its digits is 19200, while the sum is 30.

The square root of 155442342 is about 12467.6518238199. The cubic root of 155442342 is about 537.6790441567.

Adding to 155442342 its reverse (243244551), we get a palindrome (398686893).

The spelling of 155442342 in words is "one hundred fifty-five million, four hundred forty-two thousand, three hundred forty-two".