65032388 has 6 divisors (see below), whose sum is σ = 113806686. Its totient is φ = 32516192.

The previous prime is 65032381. The next prime is 65032439. The reversal of 65032388 is 88323056.

It can be written as a sum of positive squares in only one way, i.e., 48888064 + 16144324 = 6992^2 + 4018^2 .

It is a super-2 number, since 2×65032388² = 8458422977965088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65032381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8129045 + ... + 8129052.

It is an arithmetic number, because the mean of its divisors is an integer number (18967781).

Almost surely, 2^65032388 is an apocalyptic number.

It is an amenable number.

65032388 is a deficient number, since it is larger than the sum of its proper divisors (48774298).

65032388 is a wasteful number, since it uses less digits than its factorization.

65032388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16258101 (or 16258099 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 65032388 is about 8064.2661166407. The cubic root of 65032388 is about 402.1393459321.

The spelling of 65032388 in words is "sixty-five million, thirty-two thousand, three hundred eighty-eight".