3652261540 has 96 divisors (see below), whose sum is σ = 8250471936. Its totient is φ = 1354890240.

The previous prime is 3652261499. The next prime is 3652261549. The reversal of 3652261540 is 451622563.

It is a junction number, because it is equal to n+sod(n) for n = 3652261496 and 3652261505.

It is not an unprimeable number, because it can be changed into a prime (3652261549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2047489 + ... + 2049271.

It is an arithmetic number, because the mean of its divisors is an integer number (85942416).

Almost surely, 2^3652261540 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 3652261540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4125235968).

3652261540 is an abundant number, since it is smaller than the sum of its proper divisors (4598210396).

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

3652261540 is a wasteful number, since it uses less digits than its factorization.

3652261540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 3652261540 is about 60433.9436078765. The cubic root of 3652261540 is about 1539.9996542418. Note that the first 3 decimals are identical.

The spelling of 3652261540 in words is "three billion, six hundred fifty-two million, two hundred sixty-one thousand, five hundred forty".