1020620344 has 8 divisors (see below), whose sum is σ = 1913663160. Its totient is φ = 510310168.

The previous prime is 1020620329. The next prime is 1020620357. The reversal of 1020620344 is 4430260201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63788764 + ... + 63788779.

It is an arithmetic number, because the mean of its divisors is an integer number (239207895).

Almost surely, 2^1020620344 is an apocalyptic number.

It is an amenable number.

1020620344 is a deficient number, since it is larger than the sum of its proper divisors (893042816).

1020620344 is a wasteful number, since it uses less digits than its factorization.

1020620344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127577549 (or 127577545 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1020620344 is about 31947.1492311912. The cubic root of 1020620344 is about 1006.8267376018.

Adding to 1020620344 its reverse (4430260201), we get a palindrome (5450880545).

The spelling of 1020620344 in words is "one billion, twenty million, six hundred twenty thousand, three hundred forty-four".