149684448 has 24 divisors (see below), whose sum is σ = 392921928. Its totient is φ = 49894784.

The previous prime is 149684407. The next prime is 149684449. The reversal of 149684448 is 844486941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 149684397 and 149684406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149684449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779511 + ... + 779702.

It is an arithmetic number, because the mean of its divisors is an integer number (16371747).

Almost surely, 2^149684448 is an apocalyptic number.

It is an amenable number.

149684448 is an abundant number, since it is smaller than the sum of its proper divisors (243237480).

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

149684448 is a wasteful number, since it uses less digits than its factorization.

149684448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559226 (or 1559218 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 149684448 is about 12234.5595752360. The cubic root of 149684448 is about 530.9564407578.

The spelling of 149684448 in words is "one hundred forty-nine million, six hundred eighty-four thousand, four hundred forty-eight".