102406426 has 8 divisors (see below), whose sum is σ = 155335860. Its totient is φ = 50627808.

The previous prime is 102406393. The next prime is 102406429. The reversal of 102406426 is 624604201.

It can be written as a sum of positive squares in 2 ways, for example, as 97121025 + 5285401 = 9855^2 + 2299^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 102406426.

It is not an unprimeable number, because it can be changed into a prime (102406429) 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, 287481 + ... + 287836.

Almost surely, 2^102406426 is an apocalyptic number.

102406426 is a deficient number, since it is larger than the sum of its proper divisors (52929434).

102406426 is an equidigital number, since it uses as much as digits as its factorization.

102406426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575408.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 102406426 is about 10119.6060199990. The cubic root of 102406426 is about 467.8526242312.

The spelling of 102406426 in words is "one hundred two million, four hundred six thousand, four hundred twenty-six".