3640529338 has 4 divisors (see below), whose sum is σ = 5460794010. Its totient is φ = 1820264668.

The previous prime is 3640529329. The next prime is 3640529363. The reversal of 3640529338 is 8339250463.

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., 2432758329 + 1207771009 = 49323^2 + 34753^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3640529294 and 3640529303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910132333 + ... + 910132336.

Almost surely, 2^3640529338 is an apocalyptic number.

3640529338 is a deficient number, since it is larger than the sum of its proper divisors (1820264672).

3640529338 is a wasteful number, since it uses less digits than its factorization.

3640529338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820264671.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 3640529338 is about 60336.7992024768. The cubic root of 3640529338 is about 1538.3488991626.

The spelling of 3640529338 in words is "three billion, six hundred forty million, five hundred twenty-nine thousand, three hundred thirty-eight".