438562946 has 8 divisors (see below), whose sum is σ = 658041420. Its totient is φ = 219215808.

The previous prime is 438562913. The next prime is 438562967. The reversal of 438562946 is 649265834.

It can be written as a sum of positive squares in 2 ways, for example, as 437437225 + 1125721 = 20915^2 + 1061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 438562946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24011 + ... + 38126.

Almost surely, 2^438562946 is an apocalyptic number.

438562946 is a deficient number, since it is larger than the sum of its proper divisors (219478474).

438562946 is a wasteful number, since it uses less digits than its factorization.

438562946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65668.

The product of its digits is 1244160, while the sum is 47.

The square root of 438562946 is about 20941.8945179275. The cubic root of 438562946 is about 759.7615514647.

The spelling of 438562946 in words is "four hundred thirty-eight million, five hundred sixty-two thousand, nine hundred forty-six".