3648405338 has 4 divisors (see below), whose sum is σ = 5472608010. Its totient is φ = 1824202668.

The previous prime is 3648405331. The next prime is 3648405347. The reversal of 3648405338 is 8335048463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3256642489 + 391762849 = 57067^2 + 19793^2 .

It is not an unprimeable number, because it can be changed into a prime (3648405331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912101333 + ... + 912101336.

Almost surely, 2^3648405338 is an apocalyptic number.

3648405338 is a deficient number, since it is larger than the sum of its proper divisors (1824202672).

3648405338 is a wasteful number, since it uses less digits than its factorization.

3648405338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824202671.

The product of its (nonzero) digits is 829440, while the sum is 44.

The square root of 3648405338 is about 60402.0309095646. The cubic root of 3648405338 is about 1539.4574658871.

The spelling of 3648405338 in words is "three billion, six hundred forty-eight million, four hundred five thousand, three hundred thirty-eight".