620146432 has 18 divisors (see below), whose sum is σ = 1237870928. Its totient is φ = 310073088.

The previous prime is 620146421. The next prime is 620146441. The reversal of 620146432 is 234641026.

It is a self number, because there is not a number n which added to its sum of digits gives 620146432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210968 + ... + 1211479.

Almost surely, 2^620146432 is an apocalyptic number.

It is an amenable number.

620146432 is a deficient number, since it is larger than the sum of its proper divisors (617724496).

620146432 is an equidigital number, since it uses as much as digits as its factorization.

620146432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422463 (or 2422449 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 620146432 is about 24902.7394476993. The cubic root of 620146432 is about 852.7690236054.

Adding to 620146432 its reverse (234641026), we get a palindrome (854787458).

The spelling of 620146432 in words is "six hundred twenty million, one hundred forty-six thousand, four hundred thirty-two".