65038680 has 192 divisors, whose sum is σ = 252396000. Its totient is φ = 14853888.

The previous prime is 65038679. The next prime is 65038703. The reversal of 65038680 is 8683056.

It is a super-2 number, since 2×65038680² = 8460059792284800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52306 + ... + 53534.

Almost surely, 2^65038680 is an apocalyptic number.

65038680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65038680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126198000).

65038680 is an abundant number, since it is smaller than the sum of its proper divisors (187357320).

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

65038680 is a wasteful number, since it uses less digits than its factorization.

65038680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 65038680 is about 8064.6562232993. The cubic root of 65038680 is about 402.1523147478.

The spelling of 65038680 in words is "sixty-five million, thirty-eight thousand, six hundred eighty".