690220416 has 64 divisors (see below), whose sum is σ = 1896649200. Its totient is φ = 222136320.

The previous prime is 690220411. The next prime is 690220423. The reversal of 690220416 is 614022096.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690220411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19855 + ... + 42126.

Almost surely, 2^690220416 is an apocalyptic number.

It is an amenable number.

690220416 is an abundant number, since it is smaller than the sum of its proper divisors (1206428784).

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

690220416 is a wasteful number, since it uses less digits than its factorization.

690220416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62027 (or 62015 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 690220416 is about 26272.0462849775. The cubic root of 690220416 is about 883.7496748950.

The spelling of 690220416 in words is "six hundred ninety million, two hundred twenty thousand, four hundred sixteen".