10639426 has 8 divisors (see below), whose sum is σ = 18239040. Its totient is φ = 4559748.

The previous prime is 10639397. The next prime is 10639429. The reversal of 10639426 is 62493601.

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

It is a super-2 number, since 2×10639426² = 226394771218952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10639429) 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, 379966 + ... + 379993.

It is an arithmetic number, because the mean of its divisors is an integer number (2279880).

Almost surely, 2^10639426 is an apocalyptic number.

10639426 is a deficient number, since it is larger than the sum of its proper divisors (7599614).

10639426 is an equidigital number, since it uses as much as digits as its factorization.

10639426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759968.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 10639426 is about 3261.8132993781. The cubic root of 10639426 is about 219.9409345568.

The spelling of 10639426 in words is "ten million, six hundred thirty-nine thousand, four hundred twenty-six".