653488374 has 128 divisors (see below), whose sum is σ = 1721917440. Its totient is φ = 160300800.

The previous prime is 653488361. The next prime is 653488387. The reversal of 653488374 is 473884356.

It is an interprime number because it is at equal distance from previous prime (653488361) and next prime (653488387).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 945369 + ... + 946059.

It is an arithmetic number, because the mean of its divisors is an integer number (13452480).

Almost surely, 2^653488374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653488374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860958720).

653488374 is an abundant number, since it is smaller than the sum of its proper divisors (1068429066).

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

653488374 is a wasteful number, since it uses less digits than its factorization.

653488374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its digits is 1935360, while the sum is 48.

The square root of 653488374 is about 25563.4186680890. The cubic root of 653488374 is about 867.7859650157.

The spelling of 653488374 in words is "six hundred fifty-three million, four hundred eighty-eight thousand, three hundred seventy-four".