4645640446 has 4 divisors (see below), whose sum is σ = 6968460672. Its totient is φ = 2322820222.

The previous prime is 4645640437. The next prime is 4645640459. The reversal of 4645640446 is 6440465464.

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

It is a super-2 number, since 2×4645640446² = 43163950307022157832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161410110 + ... + 1161410113.

It is an arithmetic number, because the mean of its divisors is an integer number (1742115168).

Almost surely, 2^4645640446 is an apocalyptic number.

4645640446 is a deficient number, since it is larger than the sum of its proper divisors (2322820226).

4645640446 is a wasteful number, since it uses less digits than its factorization.

4645640446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322820225.

The product of its (nonzero) digits is 1105920, while the sum is 43.

The square root of 4645640446 is about 68158.9351882789. The cubic root of 4645640446 is about 1668.5857540452.

The spelling of 4645640446 in words is "four billion, six hundred forty-five million, six hundred forty thousand, four hundred forty-six".