149204224 has 72 divisors (see below), whose sum is σ = 324505440. Its totient is φ = 68057088.

The previous prime is 149204173. The next prime is 149204227. The reversal of 149204224 is 422402941.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 149204192 and 149204201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149204227) 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, 355887 + ... + 356305.

It is an arithmetic number, because the mean of its divisors is an integer number (4507020).

Almost surely, 2^149204224 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 149204224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162252720).

149204224 is an abundant number, since it is smaller than the sum of its proper divisors (175301216).

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

149204224 is a wasteful number, since it uses less digits than its factorization.

149204224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 149204224 is about 12214.9180922346. The cubic root of 149204224 is about 530.3880201161.

The spelling of 149204224 in words is "one hundred forty-nine million, two hundred four thousand, two hundred twenty-four".