620400101460 has 48 divisors (see below), whose sum is σ = 1737490438656. Its totient is φ = 165404774272.

The previous prime is 620400101443. The next prime is 620400101479. The reversal of 620400101460 is 64101004026.

It is a self number, because there is not a number n which added to its sum of digits gives 620400101460.

It is a congruent number.

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, 817119 + ... + 1381478.

It is an arithmetic number, because the mean of its divisors is an integer number (36197717472).

Almost surely, 2^620400101460 is an apocalyptic number.

620400101460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620400101460 is an abundant number, since it is smaller than the sum of its proper divisors (1117090337196).

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

620400101460 is a wasteful number, since it uses less digits than its factorization.

620400101460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203312 (or 2203310 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 620400101460 its reverse (64101004026), we get a palindrome (684501105486).

The spelling of 620400101460 in words is "six hundred twenty billion, four hundred million, one hundred one thousand, four hundred sixty".