658749402 has 64 divisors (see below), whose sum is σ = 1498124160. Its totient is φ = 214486272.

The previous prime is 658749401. The next prime is 658749461. The reversal of 658749402 is 204947856.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (658749401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 964153 + ... + 964835.

It is an arithmetic number, because the mean of its divisors is an integer number (23408190).

Almost surely, 2^658749402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 658749402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749062080).

658749402 is an abundant number, since it is smaller than the sum of its proper divisors (839374758).

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

658749402 is a wasteful number, since it uses less digits than its factorization.

658749402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 658749402 is about 25666.1138858223. The cubic root of 658749402 is about 870.1085001423.

The spelling of 658749402 in words is "six hundred fifty-eight million, seven hundred forty-nine thousand, four hundred two".