1023440562 has 32 divisors (see below), whose sum is σ = 2408097600. Its totient is φ = 321079104.

The previous prime is 1023440527. The next prime is 1023440569. The reversal of 1023440562 is 2650443201.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1023440569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556512 + ... + 558347.

It is an arithmetic number, because the mean of its divisors is an integer number (75253050).

Almost surely, 2^1023440562 is an apocalyptic number.

1023440562 is an abundant number, since it is smaller than the sum of its proper divisors (1384657038).

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

1023440562 is a wasteful number, since it uses less digits than its factorization.

1023440562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114887 (or 1114881 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1023440562 is about 31991.2575870346. The cubic root of 1023440562 is about 1007.7532523872.

Adding to 1023440562 its reverse (2650443201), we get a palindrome (3673883763).

The spelling of 1023440562 in words is "one billion, twenty-three million, four hundred forty thousand, five hundred sixty-two".