620065434 has 8 divisors (see below), whose sum is σ = 1240130880. Its totient is φ = 206688476.

The previous prime is 620065417. The next prime is 620065471. The reversal of 620065434 is 434560026.

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

620065434 is an admirable number.

It is a super-2 number, since 2×620065434² = 768962284883216712, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51672114 + ... + 51672125.

It is an arithmetic number, because the mean of its divisors is an integer number (155016360).

Almost surely, 2^620065434 is an apocalyptic number.

620065434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

620065434 is a wasteful number, since it uses less digits than its factorization.

620065434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103344244.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 620065434 is about 24901.1131076504. The cubic root of 620065434 is about 852.7318949589.

The spelling of 620065434 in words is "six hundred twenty million, sixty-five thousand, four hundred thirty-four".