149307444 has 216 divisors, whose sum is σ = 470014272. Its totient is φ = 39536640.

The previous prime is 149307427. The next prime is 149307449. The reversal of 149307444 is 444703941.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 149307399 and 149307408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149307449) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1539204 + ... + 1539300.

It is an arithmetic number, because the mean of its divisors is an integer number (2175992).

Almost surely, 2^149307444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149307444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235007136).

149307444 is an abundant number, since it is smaller than the sum of its proper divisors (320706828).

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

149307444 is a wasteful number, since it uses less digits than its factorization.

149307444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 149307444 is about 12219.1425231069. The cubic root of 149307444 is about 530.5103000135.

The spelling of 149307444 in words is "one hundred forty-nine million, three hundred seven thousand, four hundred forty-four".