690570384 has 160 divisors (see below), whose sum is σ = 2122530816. Its totient is φ = 189319680.

The previous prime is 690570373. The next prime is 690570427. The reversal of 690570384 is 483075096.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1739274 + ... + 1739670.

Almost surely, 2^690570384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690570384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061265408).

690570384 is an abundant number, since it is smaller than the sum of its proper divisors (1431960432).

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

690570384 is a wasteful number, since it uses less digits than its factorization.

690570384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 690570384 is about 26278.7059042107. The cubic root of 690570384 is about 883.8990145556.

The spelling of 690570384 in words is "six hundred ninety million, five hundred seventy thousand, three hundred eighty-four".