149383428 has 12 divisors (see below), whose sum is σ = 348561360. Its totient is φ = 49794472.

The previous prime is 149383427. The next prime is 149383433. The reversal of 149383428 is 824383941.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×149383428² = 44630817122062368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 149383428.

It is not an unprimeable number, because it can be changed into a prime (149383427) 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, 6224298 + ... + 6224321.

It is an arithmetic number, because the mean of its divisors is an integer number (29046780).

Almost surely, 2^149383428 is an apocalyptic number.

It is an amenable number.

149383428 is an abundant number, since it is smaller than the sum of its proper divisors (199177932).

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

149383428 is a wasteful number, since it uses less digits than its factorization.

149383428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12448626 (or 12448624 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 149383428 is about 12222.2513474400. The cubic root of 149383428 is about 530.6002786897.

The spelling of 149383428 in words is "one hundred forty-nine million, three hundred eighty-three thousand, four hundred twenty-eight".