1994269806 has 24 divisors (see below), whose sum is σ = 4321747560. Its totient is φ = 664628976.

The previous prime is 1994269799. The next prime is 1994269859. The reversal of 1994269806 is 6089624991.

It is a super-2 number, since 2×1994269806² = 7954224118246555272, which contains 22 as substring.

It is a congruent 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, 157881 + ... + 170043.

It is an arithmetic number, because the mean of its divisors is an integer number (180072815).

Almost surely, 2^1994269806 is an apocalyptic number.

1994269806 is an abundant number, since it is smaller than the sum of its proper divisors (2327477754).

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

1994269806 is a wasteful number, since it uses less digits than its factorization.

1994269806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21280 (or 21277 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 1994269806 is about 44657.2480791193. The cubic root of 1994269806 is about 1258.7166335648.

The spelling of 1994269806 in words is "one billion, nine hundred ninety-four million, two hundred sixty-nine thousand, eight hundred six".