155442424 has 16 divisors (see below), whose sum is σ = 308599200. Its totient is φ = 73149312.

The previous prime is 155442409. The next prime is 155442451. The reversal of 155442424 is 424244551.

It is a congruent number.

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, 571344 + ... + 571615.

It is an arithmetic number, because the mean of its divisors is an integer number (19287450).

Almost surely, 2^155442424 is an apocalyptic number.

It is an amenable number.

155442424 is a deficient number, since it is larger than the sum of its proper divisors (153156776).

155442424 is a wasteful number, since it uses less digits than its factorization.

155442424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142982 (or 1142978 counting only the distinct ones).

The product of its digits is 25600, while the sum is 31.

The square root of 155442424 is about 12467.6551123297. The cubic root of 155442424 is about 537.6791387033.

Adding to 155442424 its reverse (424244551), we get a palindrome (579686975).

The spelling of 155442424 in words is "one hundred fifty-five million, four hundred forty-two thousand, four hundred twenty-four".