1438846506 has 24 divisors (see below), whose sum is σ = 3118252644. Its totient is φ = 479499840.

The previous prime is 1438846501. The next prime is 1438846517. The reversal of 1438846506 is 6056488341.

It can be written as a sum of positive squares in 2 ways, for example, as 1384956225 + 53890281 = 37215^2 + 7341^2 .

It is not an unprimeable number, because it can be changed into a prime (1438846501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102046 + ... + 115286.

Almost surely, 2^1438846506 is an apocalyptic number.

1438846506 is an abundant number, since it is smaller than the sum of its proper divisors (1679406138).

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

1438846506 is a wasteful number, since it uses less digits than its factorization.

1438846506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19286 (or 19283 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 1438846506 is about 37932.1302591879. The cubic root of 1438846506 is about 1128.9416320520.

The spelling of 1438846506 in words is "one billion, four hundred thirty-eight million, eight hundred forty-six thousand, five hundred six".