620382434 has 24 divisors (see below), whose sum is σ = 1084717980. Its totient is φ = 265334496.

The previous prime is 620382431. The next prime is 620382461. The reversal of 620382434 is 434283026.

It can be written as a sum of positive squares in 2 ways, for example, as 610238209 + 10144225 = 24703^2 + 3185^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 620382434.

It is not an unprimeable number, because it can be changed into a prime (620382431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43664 + ... + 56100.

Almost surely, 2^620382434 is an apocalyptic number.

620382434 is a deficient number, since it is larger than the sum of its proper divisors (464335546).

620382434 is a wasteful number, since it uses less digits than its factorization.

620382434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962 (or 12955 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 620382434 is about 24907.4774716349. The cubic root of 620382434 is about 852.8771860545.

The spelling of 620382434 in words is "six hundred twenty million, three hundred eighty-two thousand, four hundred thirty-four".