190678028 has 6 divisors (see below), whose sum is σ = 333686556. Its totient is φ = 95339012.

The previous prime is 190678021. The next prime is 190678031. The reversal of 190678028 is 820876091.

It is a super-2 number, since 2×190678028² = 72716220723937568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190678021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23834750 + ... + 23834757.

It is an arithmetic number, because the mean of its divisors is an integer number (55614426).

Almost surely, 2^190678028 is an apocalyptic number.

It is an amenable number.

190678028 is a deficient number, since it is larger than the sum of its proper divisors (143008528).

190678028 is a wasteful number, since it uses less digits than its factorization.

190678028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47669511 (or 47669509 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 190678028 is about 13808.6215097670. The cubic root of 190678028 is about 575.5727404739.

The spelling of 190678028 in words is "one hundred ninety million, six hundred seventy-eight thousand, twenty-eight".