190503428 has 24 divisors (see below), whose sum is σ = 357836472. Its totient is φ = 88418304.

The previous prime is 190503323. The next prime is 190503449. The reversal of 190503428 is 824305091.

It can be written as a sum of positive squares in 4 ways, for example, as 7496644 + 183006784 = 2738^2 + 13528^2 .

It is a junction number, because it is equal to n+sod(n) for n = 190503394 and 190503403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14225 + ... + 24152.

It is an arithmetic number, because the mean of its divisors is an integer number (14909853).

Almost surely, 2^190503428 is an apocalyptic number.

It is an amenable number.

190503428 is a deficient number, since it is larger than the sum of its proper divisors (167333044).

190503428 is a wasteful number, since it uses less digits than its factorization.

190503428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38471 (or 38469 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 190503428 is about 13802.2979246211. The cubic root of 190503428 is about 575.3970067324.

The spelling of 190503428 in words is "one hundred ninety million, five hundred three thousand, four hundred twenty-eight".