149893400 has 24 divisors (see below), whose sum is σ = 348502620. Its totient is φ = 59957280.

The previous prime is 149893397. The next prime is 149893423. The reversal of 149893400 is 4398941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 374534 + ... + 374933.

Almost surely, 2^149893400 is an apocalyptic number.

149893400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149893400 is an abundant number, since it is smaller than the sum of its proper divisors (198609220).

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

149893400 is a wasteful number, since it uses less digits than its factorization.

149893400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749483 (or 749474 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 149893400 is about 12243.0960136724. The cubic root of 149893400 is about 531.2033887594.

The spelling of 149893400 in words is "one hundred forty-nine million, eight hundred ninety-three thousand, four hundred".