352615640 has 128 divisors (see below), whose sum is σ = 899640000. Its totient is φ = 123475968.

The previous prime is 352615639. The next prime is 352615643. The reversal of 352615640 is 46516253.

It is a junction number, because it is equal to n+sod(n) for n = 352615597 and 352615606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352615643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1010186 + ... + 1010534.

Almost surely, 2^352615640 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 352615640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449820000).

352615640 is an abundant number, since it is smaller than the sum of its proper divisors (547024360).

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

352615640 is a wasteful number, since it uses less digits than its factorization.

352615640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 352615640 is about 18778.0627328806. The cubic root of 352615640 is about 706.4810605859.

The spelling of 352615640 in words is "three hundred fifty-two million, six hundred fifteen thousand, six hundred forty".