1699420800 has 768 divisors, whose sum is σ = 7406668800. Its totient is φ = 334540800.

The previous prime is 1699420771. The next prime is 1699420813. The reversal of 1699420800 is 80249961.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89443191 + ... + 89443209.

It is an arithmetic number, because the mean of its divisors is an integer number (9644100).

Almost surely, 2^1699420800 is an apocalyptic number.

1699420800 is a gapful number since it is divisible by the number (10) 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 1699420800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3703334400).

1699420800 is an abundant number, since it is smaller than the sum of its proper divisors (5707248000).

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

1699420800 is a wasteful number, since it uses less digits than its factorization.

1699420800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1699420800 is about 41224.0318261084. The cubic root of 1699420800 is about 1193.3476342831.

The spelling of 1699420800 in words is "one billion, six hundred ninety-nine million, four hundred twenty thousand, eight hundred".