190123490 has 8 divisors (see below), whose sum is σ = 342222300. Its totient is φ = 76049392.

The previous prime is 190123471. The next prime is 190123499. The reversal of 190123490 is 94321091.

It is a happy number.

190123490 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 175324081 + 14799409 = 13241^2 + 3847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×190123490² = 72293882899560200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190123499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9506165 + ... + 9506184.

Almost surely, 2^190123490 is an apocalyptic number.

190123490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190123490 is a deficient number, since it is larger than the sum of its proper divisors (152098810).

190123490 is a wasteful number, since it uses less digits than its factorization.

190123490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19012356.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 190123490 is about 13788.5274775808. The cubic root of 190123490 is about 575.0142302716.

The spelling of 190123490 in words is "one hundred ninety million, one hundred twenty-three thousand, four hundred ninety".