620426244 has 24 divisors (see below), whose sum is σ = 1449499968. Its totient is φ = 206546080.

The previous prime is 620426243. The next prime is 620426269. The reversal of 620426244 is 442624026.

It is not an unprimeable number, because it can be changed into a prime (620426243) 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, 22872 + ... + 41999.

It is an arithmetic number, because the mean of its divisors is an integer number (60395832).

Almost surely, 2^620426244 is an apocalyptic number.

It is an amenable number.

620426244 is an abundant number, since it is smaller than the sum of its proper divisors (829073724).

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

620426244 is a wasteful number, since it uses less digits than its factorization.

620426244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65675 (or 65673 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 620426244 is about 24908.3569108843. The cubic root of 620426244 is about 852.8972616659.

It can be divided in two parts, 62042 and 6244, that added together give a palindrome (68286).

The spelling of 620426244 in words is "six hundred twenty million, four hundred twenty-six thousand, two hundred forty-four".