690480228 has 48 divisors (see below), whose sum is σ = 1733889024. Its totient is φ = 213066240.

The previous prime is 690480223. The next prime is 690480239. The reversal of 690480228 is 822084096.

It is not an unprimeable number, because it can be changed into a prime (690480223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15300 + ... + 40187.

It is an arithmetic number, because the mean of its divisors is an integer number (36122688).

Almost surely, 2^690480228 is an apocalyptic number.

690480228 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

690480228 is an abundant number, since it is smaller than the sum of its proper divisors (1043408796).

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

690480228 is a wasteful number, since it uses less digits than its factorization.

690480228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55572 (or 55570 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 690480228 is about 26276.9904669466. The cubic root of 690480228 is about 883.8605476740.

The spelling of 690480228 in words is "six hundred ninety million, four hundred eighty thousand, two hundred twenty-eight".