149424816 has 80 divisors (see below), whose sum is σ = 413366400. Its totient is φ = 46370304.

The previous prime is 149424811. The next prime is 149424829. The reversal of 149424816 is 618424941.

It is not an unprimeable number, because it can be changed into a prime (149424811) 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, 52420 + ... + 55196.

It is an arithmetic number, because the mean of its divisors is an integer number (5167080).

Almost surely, 2^149424816 is an apocalyptic number.

149424816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149424816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206683200).

149424816 is an abundant number, since it is smaller than the sum of its proper divisors (263941584).

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

149424816 is a wasteful number, since it uses less digits than its factorization.

149424816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2860 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 149424816 is about 12223.9443716012. The cubic root of 149424816 is about 530.6492766650.

The spelling of 149424816 in words is "one hundred forty-nine million, four hundred twenty-four thousand, eight hundred sixteen".