149209424 has 60 divisors (see below), whose sum is σ = 357807456. Its totient is φ = 59020416.

The previous prime is 149209409. The next prime is 149209427. The reversal of 149209424 is 424902941.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149209427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14987 + ... + 22869.

Almost surely, 2^149209424 is an apocalyptic number.

149209424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149209424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178903728).

149209424 is an abundant number, since it is smaller than the sum of its proper divisors (208598032).

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

149209424 is a wasteful number, since it uses less digits than its factorization.

149209424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924 (or 7905 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 149209424 is about 12215.1309448569. The cubic root of 149209424 is about 530.3941816612.

The spelling of 149209424 in words is "one hundred forty-nine million, two hundred nine thousand, four hundred twenty-four".