149443400 has 48 divisors (see below), whose sum is σ = 348311040. Its totient is φ = 59630400.

The previous prime is 149443373. The next prime is 149443403. The reversal of 149443400 is 4344941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149443403) 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 11 ways as a sum of consecutive naturals, for example, 120785 + ... + 122015.

It is an arithmetic number, because the mean of its divisors is an integer number (7256480).

Almost surely, 2^149443400 is an apocalyptic number.

149443400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149443400 is an abundant number, since it is smaller than the sum of its proper divisors (198867640).

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

149443400 is a wasteful number, since it uses less digits than its factorization.

149443400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 149443400 is about 12224.7044954060. The cubic root of 149443400 is about 530.6712747454.

The spelling of 149443400 in words is "one hundred forty-nine million, four hundred forty-three thousand, four hundred".