149487444 has 30 divisors (see below), whose sum is σ = 390790554. Its totient is φ = 49829040.

The previous prime is 149487389. The next prime is 149487449. The reversal of 149487444 is 444784941.

It can be written as a sum of positive squares in only one way, i.e., 126562500 + 22924944 = 11250^2 + 4788^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 149487444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149487449) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 230367 + ... + 231014.

Almost surely, 2^149487444 is an apocalyptic number.

It is an amenable number.

149487444 is an abundant number, since it is smaller than the sum of its proper divisors (241303110).

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

149487444 is a wasteful number, since it uses less digits than its factorization.

149487444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461397 (or 461386 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 149487444 is about 12226.5057968334. The cubic root of 149487444 is about 530.7234028194.

The spelling of 149487444 in words is "one hundred forty-nine million, four hundred eighty-seven thousand, four hundred forty-four".