620452231 has 16 divisors (see below), whose sum is σ = 716341248. Its totient is φ = 526406400.

The previous prime is 620452229. The next prime is 620452249. The reversal of 620452231 is 132254026.

It is a cyclic number.

It is not a de Polignac number, because 620452231 - 2¹ = 620452229 is a prime.

It is a super-2 number, since 2×620452231² = 769921941905754722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 620452196 and 620452205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620452211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 297111 + ... + 299191.

It is an arithmetic number, because the mean of its divisors is an integer number (44771328).

Almost surely, 2^620452231 is an apocalyptic number.

620452231 is a deficient number, since it is larger than the sum of its proper divisors (95889017).

620452231 is a wasteful number, since it uses less digits than its factorization.

620452231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 620452231 is about 24908.8785576549. The cubic root of 620452231 is about 852.9091695716.

The spelling of 620452231 in words is "six hundred twenty million, four hundred fifty-two thousand, two hundred thirty-one".