685429332 has 48 divisors (see below), whose sum is σ = 1924016640. Its totient is φ = 185529312.

The previous prime is 685429321. The next prime is 685429333. The reversal of 685429332 is 233924586.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685429333) 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, 213138 + ... + 216329.

It is an arithmetic number, because the mean of its divisors is an integer number (40083680).

Almost surely, 2^685429332 is an apocalyptic number.

It is an amenable number.

685429332 is an abundant number, since it is smaller than the sum of its proper divisors (1238587308).

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

685429332 is a wasteful number, since it uses less digits than its factorization.

685429332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429500 (or 429498 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 685429332 is about 26180.7053380920. The cubic root of 685429332 is about 881.7001104059.

The spelling of 685429332 in words is "six hundred eighty-five million, four hundred twenty-nine thousand, three hundred thirty-two".