694942080 has 256 divisors, whose sum is σ = 2620339200. Its totient is φ = 153280512.

The previous prime is 694942069. The next prime is 694942093. The reversal of 694942080 is 80249496.

694942080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388869 + ... + 390651.

It is an arithmetic number, because the mean of its divisors is an integer number (10235700).

Almost surely, 2^694942080 is an apocalyptic number.

694942080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694942080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310169600).

694942080 is an abundant number, since it is smaller than the sum of its proper divisors (1925397120).

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

694942080 is a wasteful number, since it uses less digits than its factorization.

694942080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 694942080 is about 26361.7541146260. The cubic root of 694942080 is about 885.7602838209.

The spelling of 694942080 in words is "six hundred ninety-four million, nine hundred forty-two thousand, eighty".