652431740 has 24 divisors (see below), whose sum is σ = 1379186592. Its totient is φ = 259243200.

The previous prime is 652431737. The next prime is 652431757. The reversal of 652431740 is 47134256.

It is a junction number, because it is equal to n+sod(n) for n = 652431697 and 652431706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104999 + ... + 111038.

It is an arithmetic number, because the mean of its divisors is an integer number (57466108).

Almost surely, 2^652431740 is an apocalyptic number.

It is an amenable number.

652431740 is an abundant number, since it is smaller than the sum of its proper divisors (726754852).

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

652431740 is a wasteful number, since it uses less digits than its factorization.

652431740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216197 (or 216195 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 652431740 is about 25542.7433922044. The cubic root of 652431740 is about 867.3180011691.

Adding to 652431740 its reverse (47134256), we get a palindrome (699565996).

The spelling of 652431740 in words is "six hundred fifty-two million, four hundred thirty-one thousand, seven hundred forty".