149228730 has 192 divisors, whose sum is σ = 476356608. Its totient is φ = 32892480.

The previous prime is 149228719. The next prime is 149228731. The reversal of 149228730 is 37822941.

It is not an unprimeable number, because it can be changed into a prime (149228731) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 527169 + ... + 527451.

It is an arithmetic number, because the mean of its divisors is an integer number (2481024).

Almost surely, 2^149228730 is an apocalyptic number.

149228730 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 149228730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238178304).

149228730 is an abundant number, since it is smaller than the sum of its proper divisors (327127878).

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

149228730 is a wasteful number, since it uses less digits than its factorization.

149228730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 149228730 is about 12215.9211687044. The cubic root of 149228730 is about 530.4170563299.

The spelling of 149228730 in words is "one hundred forty-nine million, two hundred twenty-eight thousand, seven hundred thirty".