1023440450 has 24 divisors (see below), whose sum is σ = 1969243380. Its totient is φ = 395259200.

The previous prime is 1023440423. The next prime is 1023440507. The reversal of 1023440450 is 540443201.

It can be written as a sum of positive squares in 6 ways, for example, as 180176929 + 843263521 = 13423^2 + 29039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351461 + ... + 354360.

Almost surely, 2^1023440450 is an apocalyptic number.

1023440450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023440450 is a deficient number, since it is larger than the sum of its proper divisors (945802930).

1023440450 is a wasteful number, since it uses less digits than its factorization.

1023440450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705862 (or 705857 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1023440450 is about 31991.2558365563. The cubic root of 1023440450 is about 1007.7532156261.

Adding to 1023440450 its reverse (540443201), we get a palindrome (1563883651).

The spelling of 1023440450 in words is "one billion, twenty-three million, four hundred forty thousand, four hundred fifty".