190820430 has 24 divisors (see below), whose sum is σ = 496133352. Its totient is φ = 50885424.

The previous prime is 190820417. The next prime is 190820447. The reversal of 190820430 is 34028091.

It is a junction number, because it is equal to n+sod(n) for n = 190820394 and 190820403.

It is a congruent 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, 1060024 + ... + 1060203.

It is an arithmetic number, because the mean of its divisors is an integer number (20672223).

Almost surely, 2^190820430 is an apocalyptic number.

190820430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190820430 is an abundant number, since it is smaller than the sum of its proper divisors (305312922).

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

190820430 is a wasteful number, since it uses less digits than its factorization.

190820430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120240 (or 2120237 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 190820430 is about 13813.7768188139. The cubic root of 190820430 is about 575.7159877320.

The spelling of 190820430 in words is "one hundred ninety million, eight hundred twenty thousand, four hundred thirty".