149430 has 32 divisors (see below), whose sum is σ = 381024. Its totient is φ = 37376.

The previous prime is 149423. The next prime is 149441. The reversal of 149430 is 34941.

149430 = T₁₂₄ + T₁₂₅ + ... + T₁₄₀.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149397 and 149406.

It is a congruent number.

It is an unprimeable number.

149430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (11907).

2¹⁴⁹⁴³⁰ is an apocalyptic number.

149430 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 149430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190512).

149430 is an abundant number, since it is smaller than the sum of its proper divisors (231594).

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

149430 is a wasteful number, since it uses less digits than its factorization.

149430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 149430 is about 386.5617673801. The cubic root of 149430 is about 53.0655413205.

The spelling of 149430 in words is "one hundred forty-nine thousand, four hundred thirty".