190031432 has 16 divisors (see below), whose sum is σ = 368595900. Its totient is φ = 91739200.

The previous prime is 190031417. The next prime is 190031437. The reversal of 190031432 is 234130091.

It can be written as a sum of positive squares in 2 ways, for example, as 186213316 + 3818116 = 13646^2 + 1954^2 .

It is a super-2 number, since 2×190031432² = 72223890295941248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190031398 and 190031407.

It is not an unprimeable number, because it can be changed into a prime (190031437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 409319 + ... + 409782.

Almost surely, 2^190031432 is an apocalyptic number.

It is an amenable number.

190031432 is a deficient number, since it is larger than the sum of its proper divisors (178564468).

190031432 is a wasteful number, since it uses less digits than its factorization.

190031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819136 (or 819132 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 190031432 is about 13785.1888634142. The cubic root of 190031432 is about 574.9214077839.

The spelling of 190031432 in words is "one hundred ninety million, thirty-one thousand, four hundred thirty-two".