10402427 has 8 divisors (see below), whose sum is σ = 12051936. Its totient is φ = 8793792.

The previous prime is 10402421. The next prime is 10402429. The reversal of 10402427 is 72420401.

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

It is not a de Polignac number, because 10402427 - 2⁴ = 10402411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10402399 and 10402408.

It is not an unprimeable number, because it can be changed into a prime (10402421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9668 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (1506492).

Almost surely, 2^10402427 is an apocalyptic number.

10402427 is a deficient number, since it is larger than the sum of its proper divisors (1649509).

10402427 is an equidigital number, since it uses as much as digits as its factorization.

10402427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20437.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 10402427 is about 3225.2793677448. The cubic root of 10402427 is about 218.2955548462.

Adding to 10402427 its reverse (72420401), we get a palindrome (82822828).

The spelling of 10402427 in words is "ten million, four hundred two thousand, four hundred twenty-seven".