658245648 has 80 divisors (see below), whose sum is σ = 1779886080. Its totient is φ = 209227392.

The previous prime is 658245647. The next prime is 658245649. The reversal of 658245648 is 846542856.

It is an interprime number because it is at equal distance from previous prime (658245647) and next prime (658245649).

It is a super-2 number, since 2×658245648² = 866574666221879808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 658245597 and 658245606.

It is not an unprimeable number, because it can be changed into a prime (658245641) 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, 461865 + ... + 463287.

It is an arithmetic number, because the mean of its divisors is an integer number (22248576).

Almost surely, 2^658245648 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 658245648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889943040).

658245648 is an abundant number, since it is smaller than the sum of its proper divisors (1121640432).

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

658245648 is a wasteful number, since it uses less digits than its factorization.

658245648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 1870 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The square root of 658245648 is about 25656.2984079933. The cubic root of 658245648 is about 869.8866492567.

The spelling of 658245648 in words is "six hundred fifty-eight million, two hundred forty-five thousand, six hundred forty-eight".