23140426 has 8 divisors (see below), whose sum is σ = 34773984. Its totient is φ = 11549100.

The previous prime is 23140409. The next prime is 23140427. The reversal of 23140426 is 62404132.

It is a happy number.

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

It is a super-2 number, since 2×23140426² = 1070958630922952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23140397 and 23140406.

It is not an unprimeable number, because it can be changed into a prime (23140427) 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, 9150 + ... + 11401.

It is an arithmetic number, because the mean of its divisors is an integer number (4346748).

Almost surely, 2^23140426 is an apocalyptic number.

23140426 is a deficient number, since it is larger than the sum of its proper divisors (11633558).

23140426 is a wasteful number, since it uses less digits than its factorization.

23140426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21116.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 23140426 is about 4810.4496671309. The cubic root of 23140426 is about 284.9642963379.

Adding to 23140426 its reverse (62404132), we get a palindrome (85544558).

The spelling of 23140426 in words is "twenty-three million, one hundred forty thousand, four hundred twenty-six".