190409420 has 12 divisors (see below), whose sum is σ = 399859824. Its totient is φ = 76163760.

The previous prime is 190409411. The next prime is 190409489. The reversal of 190409420 is 24904091.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4760216 + ... + 4760255.

It is an arithmetic number, because the mean of its divisors is an integer number (33321652).

Almost surely, 2^190409420 is an apocalyptic number.

190409420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190409420 is an abundant number, since it is smaller than the sum of its proper divisors (209450404).

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

190409420 is a wasteful number, since it uses less digits than its factorization.

190409420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520480 (or 9520478 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 190409420 is about 13798.8919845037. The cubic root of 190409420 is about 575.3023438306.

The spelling of 190409420 in words is "one hundred ninety million, four hundred nine thousand, four hundred twenty".