690429024 has 144 divisors (see below), whose sum is σ = 2146435200. Its totient is φ = 209571840.

The previous prime is 690429001. The next prime is 690429029. The reversal of 690429024 is 420924096.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a self number, because there is not a number n which added to its sum of digits gives 690429024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690429029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149502 + ... + 154050.

It is an arithmetic number, because the mean of its divisors is an integer number (14905800).

Almost surely, 2^690429024 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 690429024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1073217600).

690429024 is an abundant number, since it is smaller than the sum of its proper divisors (1456006176).

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

690429024 is a wasteful number, since it uses less digits than its factorization.

690429024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4602 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 690429024 is about 26276.0161363933. The cubic root of 690429024 is about 883.8386989604.

The spelling of 690429024 in words is "six hundred ninety million, four hundred twenty-nine thousand, twenty-four".