149441440 has 24 divisors (see below), whose sum is σ = 353055780. Its totient is φ = 59776512.

The previous prime is 149441389. The next prime is 149441447. The reversal of 149441440 is 44144941.

It can be written as a sum of positive squares in 2 ways, for example, as 132434064 + 17007376 = 11508^2 + 4124^2 .

It is not an unprimeable number, because it can be changed into a prime (149441447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466845 + ... + 467164.

Almost surely, 2^149441440 is an apocalyptic number.

149441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149441440 is an abundant number, since it is smaller than the sum of its proper divisors (203614340).

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

149441440 is an equidigital number, since it uses as much as digits as its factorization.

149441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934024 (or 934016 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 149441440 is about 12224.6243296062. The cubic root of 149441440 is about 530.6689547584.

It can be divided in two parts, 14944 and 1440, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 149441440 in words is "one hundred forty-nine million, four hundred forty-one thousand, four hundred forty".