620065438 has 8 divisors (see below), whose sum is σ = 931617288. Its totient is φ = 309526344.

The previous prime is 620065417. The next prime is 620065471. The reversal of 620065438 is 834560026.

It is a happy number.

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

It is a super-2 number, since 2×620065438² = 768962294804263688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251656 + ... + 254107.

It is an arithmetic number, because the mean of its divisors is an integer number (116452161).

Almost surely, 2^620065438 is an apocalyptic number.

620065438 is a deficient number, since it is larger than the sum of its proper divisors (311551850).

620065438 is a wasteful number, since it uses less digits than its factorization.

620065438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506378.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 620065438 is about 24901.1131879681. The cubic root of 620065438 is about 852.7318967926.

The spelling of 620065438 in words is "six hundred twenty million, sixty-five thousand, four hundred thirty-eight".