65332390 has 8 divisors (see below), whose sum is σ = 117598320. Its totient is φ = 26132952.

The previous prime is 65332373. The next prime is 65332391. The reversal of 65332390 is 9323356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×65332390² = 8536642366224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65332391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3266610 + ... + 3266629.

It is an arithmetic number, because the mean of its divisors is an integer number (14699790).

Almost surely, 2^65332390 is an apocalyptic number.

65332390 is a deficient number, since it is larger than the sum of its proper divisors (52265930).

65332390 is a wasteful number, since it uses less digits than its factorization.

65332390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533246.

The product of its (nonzero) digits is 14580, while the sum is 31.

The square root of 65332390 is about 8082.8454148276. The cubic root of 65332390 is about 402.7567694085.

The spelling of 65332390 in words is "sixty-five million, three hundred thirty-two thousand, three hundred ninety".