438345446 has 16 divisors (see below), whose sum is σ = 819763200. Its totient is φ = 170783880.

The previous prime is 438345433. The next prime is 438345461. The reversal of 438345446 is 644543834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423046 + ... + 1423353.

It is an arithmetic number, because the mean of its divisors is an integer number (51235200).

Almost surely, 2^438345446 is an apocalyptic number.

438345446 is a deficient number, since it is larger than the sum of its proper divisors (381417754).

438345446 is a wasteful number, since it uses less digits than its factorization.

438345446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846419.

The product of its digits is 552960, while the sum is 41.

The square root of 438345446 is about 20936.7009340058. The cubic root of 438345446 is about 759.6359325054.

The spelling of 438345446 in words is "four hundred thirty-eight million, three hundred forty-five thousand, four hundred forty-six".