1065878406 has 32 divisors (see below), whose sum is σ = 2373948000. Its totient is φ = 354493440.

The previous prime is 1065878399. The next prime is 1065878413. The reversal of 1065878406 is 6048785601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1065878399) and next prime (1065878413).

It is a super-2 number, since 2×1065878406² = 2272193552754201672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266 + ... + 46226.

It is an arithmetic number, because the mean of its divisors is an integer number (74185875).

Almost surely, 2^1065878406 is an apocalyptic number.

1065878406 is an abundant number, since it is smaller than the sum of its proper divisors (1308069594).

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

1065878406 is a wasteful number, since it uses less digits than its factorization.

1065878406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44421 (or 44415 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 1065878406 is about 32647.7932791789. The cubic root of 1065878406 is about 1021.4941596739.

The spelling of 1065878406 in words is "one billion, sixty-five million, eight hundred seventy-eight thousand, four hundred six".