190344450 has 24 divisors (see below), whose sum is σ = 472054608. Its totient is φ = 50758480.

The previous prime is 190344439. The next prime is 190344467. The reversal of 190344450 is 54443091.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634332 + ... + 634631.

It is an arithmetic number, because the mean of its divisors is an integer number (19668942).

Almost surely, 2^190344450 is an apocalyptic number.

190344450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190344450 is an abundant number, since it is smaller than the sum of its proper divisors (281710158).

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

190344450 is a wasteful number, since it uses less digits than its factorization.

190344450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268978 (or 1268973 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 190344450 is about 13796.5376091250. The cubic root of 190344450 is about 575.2369030114.

The spelling of 190344450 in words is "one hundred ninety million, three hundred forty-four thousand, four hundred fifty".