190426634 has 4 divisors (see below), whose sum is σ = 285639954. Its totient is φ = 95213316.

The previous prime is 190426633. The next prime is 190426669. The reversal of 190426634 is 436624091.

190426634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436624091 = 13633 ⋅32027.

It can be written as a sum of positive squares in only one way, i.e., 190302025 + 124609 = 13795^2 + 353^2 .

It is a junction number, because it is equal to n+sod(n) for n = 190426594 and 190426603.

It is not an unprimeable number, because it can be changed into a prime (190426631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47606657 + ... + 47606660.

Almost surely, 2^190426634 is an apocalyptic number.

190426634 is a deficient number, since it is larger than the sum of its proper divisors (95213320).

190426634 is an equidigital number, since it uses as much as digits as its factorization.

190426634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95213319.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 190426634 is about 13799.5157161402. The cubic root of 190426634 is about 575.3196800810.

The spelling of 190426634 in words is "one hundred ninety million, four hundred twenty-six thousand, six hundred thirty-four".