690099120 has 120 divisors (see below), whose sum is σ = 2367009216. Its totient is φ = 180102144.

The previous prime is 690099097. The next prime is 690099169. The reversal of 690099120 is 21990096.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23644 + ... + 44036.

Almost surely, 2^690099120 is an apocalyptic number.

690099120 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 690099120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183504608).

690099120 is an abundant number, since it is smaller than the sum of its proper divisors (1676910096).

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

690099120 is a wasteful number, since it uses less digits than its factorization.

690099120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20459 (or 20450 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 690099120 is about 26269.7377223299. The cubic root of 690099120 is about 883.6979032300.

The spelling of 690099120 in words is "six hundred ninety million, ninety-nine thousand, one hundred twenty".