190300840 has 16 divisors (see below), whose sum is σ = 428176980. Its totient is φ = 76120320.

The previous prime is 190300829. The next prime is 190300849. The reversal of 190300840 is 48003091.

190300840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 178970884 + 11329956 = 13378^2 + 3366^2 .

It is not an unprimeable number, because it can be changed into a prime (190300849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378721 + ... + 2378800.

Almost surely, 2^190300840 is an apocalyptic number.

190300840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190300840 is an abundant number, since it is smaller than the sum of its proper divisors (237876140).

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

190300840 is a wasteful number, since it uses less digits than its factorization.

190300840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757532 (or 4757528 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 190300840 is about 13794.9570495888. The cubic root of 190300840 is about 575.1929686293.

The spelling of 190300840 in words is "one hundred ninety million, three hundred thousand, eight hundred forty".