1046620399 has 4 divisors (see below), whose sum is σ = 1141767720. Its totient is φ = 951473080.

The previous prime is 1046620391. The next prime is 1046620403. The reversal of 1046620399 is 9930266401.

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

It is a cyclic number.

It is not a de Polignac number, because 1046620399 - 2³ = 1046620391 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1046620391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47573644 + ... + 47573665.

It is an arithmetic number, because the mean of its divisors is an integer number (285441930).

Almost surely, 2^1046620399 is an apocalyptic number.

1046620399 is a deficient number, since it is larger than the sum of its proper divisors (95147321).

1046620399 is an equidigital number, since it uses as much as digits as its factorization.

1046620399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95147320.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1046620399 is about 32351.5130867167. The cubic root of 1046620399 is about 1015.3047040727.

The spelling of 1046620399 in words is "one billion, forty-six million, six hundred twenty thousand, three hundred ninety-nine".