155424030 has 64 divisors (see below), whose sum is σ = 404647488. Its totient is φ = 38051840.

The previous prime is 155423981. The next prime is 155424083. The reversal of 155424030 is 30424551.

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 31 ways as a sum of consecutive naturals, for example, 17194 + ... + 24626.

It is an arithmetic number, because the mean of its divisors is an integer number (6322617).

Almost surely, 2^155424030 is an apocalyptic number.

155424030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155424030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202323744).

155424030 is an abundant number, since it is smaller than the sum of its proper divisors (249223458).

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

155424030 is a wasteful number, since it uses less digits than its factorization.

155424030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7501.

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

The square root of 155424030 is about 12466.9174217206. The cubic root of 155424030 is about 537.6579294351.

Adding to 155424030 its reverse (30424551), we get a palindrome (185848581).

The spelling of 155424030 in words is "one hundred fifty-five million, four hundred twenty-four thousand, thirty".