1670726896 has 20 divisors (see below), whose sum is σ = 3341454784. Its totient is φ = 808416000.

The previous prime is 1670726891. The next prime is 1670726899. The reversal of 1670726896 is 6986270761.

It is a happy number.

1670726896 is an admirable number.

It is a super-2 number, since 2×1670726896² = 5582656722035589632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670726891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1683705 + ... + 1684696.

Almost surely, 2^1670726896 is an apocalyptic number.

1670726896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1670726896 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1670726896 is a wasteful number, since it uses less digits than its factorization.

1670726896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368440 (or 3368434 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 1670726896 is about 40874.5262480191. The cubic root of 1670726896 is about 1186.5931075614.

The spelling of 1670726896 in words is "one billion, six hundred seventy million, seven hundred twenty-six thousand, eight hundred ninety-six".