806446402 has 4 divisors (see below), whose sum is σ = 1209669606. Its totient is φ = 403223200.

The previous prime is 806446363. The next prime is 806446409. The reversal of 806446402 is 204644608.

It is a happy number.

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., 674908441 + 131537961 = 25979^2 + 11469^2 .

It is not an unprimeable number, because it can be changed into a prime (806446409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201611599 + ... + 201611602.

Almost surely, 2^806446402 is an apocalyptic number.

806446402 is a deficient number, since it is larger than the sum of its proper divisors (403223204).

806446402 is a wasteful number, since it uses less digits than its factorization.

806446402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403223203.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 806446402 is about 28397.9999647863. Note that the first 4 decimals coincide. The cubic root of 806446402 is about 930.8045613979.

The spelling of 806446402 in words is "eight hundred six million, four hundred forty-six thousand, four hundred two".