196387790 has 32 divisors (see below), whose sum is σ = 371817216. Its totient is φ = 74580480.

The previous prime is 196387783. The next prime is 196387801. The reversal of 196387790 is 97783691.

It is a super-2 number, since 2×196387790² = 77136328122168200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10454 + ... + 22406.

It is an arithmetic number, because the mean of its divisors is an integer number (11619288).

Almost surely, 2^196387790 is an apocalyptic number.

196387790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196387790 is a deficient number, since it is larger than the sum of its proper divisors (175429426).

196387790 is a wasteful number, since it uses less digits than its factorization.

196387790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 196387790 is about 14013.8427991754. The cubic root of 196387790 is about 581.2614143517.

The spelling of 196387790 in words is "one hundred ninety-six million, three hundred eighty-seven thousand, seven hundred ninety".