1402906 has 4 divisors (see below), whose sum is σ = 2104362. Its totient is φ = 701452.

The previous prime is 1402901. The next prime is 1402937. The reversal of 1402906 is 6092041.

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., 1083681 + 319225 = 1041^2 + 565^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1402901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350725 + ... + 350728.

2^1402906 is an apocalyptic number.

1402906 is a deficient number, since it is larger than the sum of its proper divisors (701456).

1402906 is an equidigital number, since it uses as much as digits as its factorization.

1402906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701455.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1402906 is about 1184.4433291635. The cubic root of 1402906 is about 111.9462433352.

Adding to 1402906 its reverse (6092041), we get a palindrome (7494947).

The spelling of 1402906 in words is "one million, four hundred two thousand, nine hundred six".