670811400 has 144 divisors (see below), whose sum is σ = 2574686400. Its totient is φ = 153325440.

The previous prime is 670811389. The next prime is 670811413. The reversal of 670811400 is 4118076.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14020 + ... + 39219.

Almost surely, 2^670811400 is an apocalyptic number.

670811400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670811400 is an abundant number, since it is smaller than the sum of its proper divisors (1903875000).

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

670811400 is a wasteful number, since it uses less digits than its factorization.

670811400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53268 (or 53256 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 670811400 is about 25900.0270270129. The cubic root of 670811400 is about 875.3871049078.

Adding to 670811400 its reverse (4118076), we get a palindrome (674929476).

The spelling of 670811400 in words is "six hundred seventy million, eight hundred eleven thousand, four hundred".