620217487340 has 24 divisors (see below), whose sum is σ = 1420861880592. Its totient is φ = 225533631680.

The previous prime is 620217487327. The next prime is 620217487343. The reversal of 620217487340 is 43784712026.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 620217487291 and 620217487300.

It is not an unprimeable number, because it can be changed into a prime (620217487343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409584979 + ... + 1409585418.

It is an arithmetic number, because the mean of its divisors is an integer number (59202578358).

Almost surely, 2^620217487340 is an apocalyptic number.

It is an amenable number.

620217487340 is an abundant number, since it is smaller than the sum of its proper divisors (800644393252).

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

620217487340 is a wasteful number, since it uses less digits than its factorization.

620217487340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819170417 (or 2819170415 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 620217487340 in words is "six hundred twenty billion, two hundred seventeen million, four hundred eighty-seven thousand, three hundred forty".