620123460 has 48 divisors (see below), whose sum is σ = 1894197312. Its totient is φ = 150332800.

The previous prime is 620123437. The next prime is 620123503. The reversal of 620123460 is 64321026.

It is a self number, because there is not a number n which added to its sum of digits gives 620123460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469131 + ... + 470450.

It is an arithmetic number, because the mean of its divisors is an integer number (39462444).

Almost surely, 2^620123460 is an apocalyptic number.

620123460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620123460 is an abundant number, since it is smaller than the sum of its proper divisors (1274073852).

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

620123460 is a wasteful number, since it uses less digits than its factorization.

620123460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939604 (or 939602 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 620123460 is about 24902.2782090314. The cubic root of 620123460 is about 852.7584938063.

Adding to 620123460 its reverse (64321026), we get a palindrome (684444486).

The spelling of 620123460 in words is "six hundred twenty million, one hundred twenty-three thousand, four hundred sixty".