109426406 has 4 divisors (see below), whose sum is σ = 164139612. Its totient is φ = 54713202.

The previous prime is 109426403. The next prime is 109426409. The reversal of 109426406 is 604624901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604624901 = 53 ⋅11408017.

It is an interprime number because it is at equal distance from previous prime (109426403) and next prime (109426409).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109426403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27356600 + ... + 27356603.

It is an arithmetic number, because the mean of its divisors is an integer number (41034903).

Almost surely, 2^109426406 is an apocalyptic number.

109426406 is a deficient number, since it is larger than the sum of its proper divisors (54713206).

109426406 is an equidigital number, since it uses as much as digits as its factorization.

109426406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54713205.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 109426406 is about 10460.7077198438. The cubic root of 109426406 is about 478.3077067319.

The spelling of 109426406 in words is "one hundred nine million, four hundred twenty-six thousand, four hundred six".