439091946 has 24 divisors (see below), whose sum is σ = 1007329284. Its totient is φ = 137754240.

The previous prime is 439091927. The next prime is 439091977. The reversal of 439091946 is 649190934.

It can be written as a sum of positive squares in 2 ways, for example, as 426876921 + 12215025 = 20661^2 + 3495^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717165 + ... + 717776.

Almost surely, 2^439091946 is an apocalyptic number.

439091946 is an abundant number, since it is smaller than the sum of its proper divisors (568237338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439091946 is a wasteful number, since it uses less digits than its factorization.

439091946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434966 (or 1434963 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 439091946 is about 20954.5208964557. The cubic root of 439091946 is about 760.0669066212.

The spelling of 439091946 in words is "four hundred thirty-nine million, ninety-one thousand, nine hundred forty-six".