698402880 has 420 divisors, whose sum is σ = 2830164012. Its totient is φ = 158054400.

The previous prime is 698402879. The next prime is 698402909. The reversal of 698402880 is 88204896.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 499254336 + 199148544 = 22344^2 + 14112^2 .

It is a tau number, because it is divible by the number of its divisors (420).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6914830 + ... + 6914930.

Almost surely, 2^698402880 is an apocalyptic number.

698402880 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 698402880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415082006).

698402880 is an abundant number, since it is smaller than the sum of its proper divisors (2131761132).

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

698402880 is a wasteful number, since it uses less digits than its factorization.

698402880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 698402880 is about 26427.3131437912. The cubic root of 698402880 is about 887.2282069271.

The spelling of 698402880 in words is "six hundred ninety-eight million, four hundred two thousand, eight hundred eighty".