190453790 has 16 divisors (see below), whose sum is σ = 342975168. Its totient is φ = 76146336.

The previous prime is 190453789. The next prime is 190453807. The reversal of 190453790 is 97354091.

It is a happy number.

It is a super-2 number, since 2×190453790² = 72545292250728200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36059 + ... + 41001.

It is an arithmetic number, because the mean of its divisors is an integer number (21435948).

Almost surely, 2^190453790 is an apocalyptic number.

190453790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190453790 is a deficient number, since it is larger than the sum of its proper divisors (152521378).

190453790 is a wasteful number, since it uses less digits than its factorization.

190453790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8803.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 190453790 is about 13800.4996286366. The cubic root of 190453790 is about 575.3470268134.

The spelling of 190453790 in words is "one hundred ninety million, four hundred fifty-three thousand, seven hundred ninety".