149809830 has 16 divisors (see below), whose sum is σ = 359543664. Its totient is φ = 39949280.

The previous prime is 149809817. The next prime is 149809837. The reversal of 149809830 is 38908941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149809837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2496801 + ... + 2496860.

It is an arithmetic number, because the mean of its divisors is an integer number (22471479).

Almost surely, 2^149809830 is an apocalyptic number.

149809830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149809830 is an abundant number, since it is smaller than the sum of its proper divisors (209733834).

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

149809830 is a wasteful number, since it uses less digits than its factorization.

149809830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993671.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 149809830 is about 12239.6825939237. The cubic root of 149809830 is about 531.1046498782.

The spelling of 149809830 in words is "one hundred forty-nine million, eight hundred nine thousand, eight hundred thirty".