190813408 has 12 divisors (see below), whose sum is σ = 375663960. Its totient is φ = 95406688.

The previous prime is 190813397. The next prime is 190813439. The reversal of 190813408 is 804318091.

It is a happy number.

190813408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2981428 + ... + 2981491.

It is an arithmetic number, because the mean of its divisors is an integer number (31305330).

Almost surely, 2^190813408 is an apocalyptic number.

It is an amenable number.

190813408 is a deficient number, since it is larger than the sum of its proper divisors (184850552).

190813408 is an equidigital number, since it uses as much as digits as its factorization.

190813408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5962929 (or 5962921 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 190813408 is about 13813.5226499253. The cubic root of 190813408 is about 575.7089257222.

The spelling of 190813408 in words is "one hundred ninety million, eight hundred thirteen thousand, four hundred eight".