10406402 has 4 divisors (see below), whose sum is σ = 15609606. Its totient is φ = 5203200.

The previous prime is 10406393. The next prime is 10406423. The reversal of 10406402 is 20460401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8532241 + 1874161 = 2921^2 + 1369^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601599 + ... + 2601602.

Almost surely, 2^10406402 is an apocalyptic number.

10406402 is a deficient number, since it is larger than the sum of its proper divisors (5203204).

10406402 is an equidigital number, since it uses as much as digits as its factorization.

10406402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203203.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10406402 is about 3225.8955345764. The cubic root of 10406402 is about 218.3233565098.

Adding to 10406402 its reverse (20460401), we get a palindrome (30866803).

The spelling of 10406402 in words is "ten million, four hundred six thousand, four hundred two".