155030424 has 64 divisors (see below), whose sum is σ = 411340800. Its totient is φ = 48553344.

The previous prime is 155030423. The next prime is 155030431. The reversal of 155030424 is 424030551.

155030424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 155030394 and 155030403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155030423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56574 + ... + 59250.

It is an arithmetic number, because the mean of its divisors is an integer number (6427200).

Almost surely, 2^155030424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155030424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205670400).

155030424 is an abundant number, since it is smaller than the sum of its proper divisors (256310376).

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

155030424 is a wasteful number, since it uses less digits than its factorization.

155030424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 155030424 is about 12451.1213952800. The cubic root of 155030424 is about 537.2036790350.

Adding to 155030424 its reverse (424030551), we get a palindrome (579060975).

The spelling of 155030424 in words is "one hundred fifty-five million, thirty thousand, four hundred twenty-four".