652440642 has 32 divisors (see below), whose sum is σ = 1493077632. Its totient is φ = 186188544.

The previous prime is 652440641. The next prime is 652440683. The reversal of 652440642 is 246044256.

It is not an unprimeable number, because it can be changed into a prime (652440641) 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, 27978 + ... + 45690.

It is an arithmetic number, because the mean of its divisors is an integer number (46658676).

Almost surely, 2^652440642 is an apocalyptic number.

652440642 is an abundant number, since it is smaller than the sum of its proper divisors (840636990).

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

652440642 is a wasteful number, since it uses less digits than its factorization.

652440642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18602.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 652440642 is about 25542.9176485381. The cubic root of 652440642 is about 867.3219458115.

Adding to 652440642 its reverse (246044256), we get a palindrome (898484898).

The spelling of 652440642 in words is "six hundred fifty-two million, four hundred forty thousand, six hundred forty-two".