149299400 has 24 divisors (see below), whose sum is σ = 347121570. Its totient is φ = 59719680.

The previous prime is 149299387. The next prime is 149299411. The reversal of 149299400 is 4992941.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 146264836 + 3034564 = 12094^2 + 1742^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373049 + ... + 373448.

Almost surely, 2^149299400 is an apocalyptic number.

149299400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149299400 is an abundant number, since it is smaller than the sum of its proper divisors (197822170).

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

149299400 is a wasteful number, since it uses less digits than its factorization.

149299400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746513 (or 746504 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 149299400 is about 12218.8133630071. The cubic root of 149299400 is about 530.5007726889.

The spelling of 149299400 in words is "one hundred forty-nine million, two hundred ninety-nine thousand, four hundred".