190005690 has 32 divisors (see below), whose sum is σ = 521159040. Its totient is φ = 43429824.

The previous prime is 190005661. The next prime is 190005701. The reversal of 190005690 is 96500091.

190005690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190005690² = 72204324464752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 452185 + ... + 452604.

It is an arithmetic number, because the mean of its divisors is an integer number (16286220).

Almost surely, 2^190005690 is an apocalyptic number.

190005690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190005690 is an abundant number, since it is smaller than the sum of its proper divisors (331153350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190005690 is a wasteful number, since it uses less digits than its factorization.

190005690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904806.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 190005690 is about 13784.2551485381. The cubic root of 190005690 is about 574.8954466485.

The spelling of 190005690 in words is "one hundred ninety million, five thousand, six hundred ninety".