670401400 has 48 divisors (see below), whose sum is σ = 1576238400. Its totient is φ = 265140480.

The previous prime is 670401367. The next prime is 670401419. The reversal of 670401400 is 4104076.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1032 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (32838300).

Almost surely, 2^670401400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670401400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788119200).

670401400 is an abundant number, since it is smaller than the sum of its proper divisors (905837000).

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

670401400 is a wasteful number, since it uses less digits than its factorization.

670401400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37768 (or 37759 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 670401400 is about 25892.1107675678. The cubic root of 670401400 is about 875.2087229963.

Adding to 670401400 its reverse (4104076), we get a palindrome (674505476).

The spelling of 670401400 in words is "six hundred seventy million, four hundred one thousand, four hundred".