1423321450 has 24 divisors (see below), whose sum is σ = 2738669580. Its totient is φ = 549696000.

The previous prime is 1423321429. The next prime is 1423321511. The reversal of 1423321450 is 541233241.

It can be written as a sum of positive squares in 6 ways, for example, as 831226561 + 592094889 = 28831^2 + 24333^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 489351 + ... + 492250.

Almost surely, 2^1423321450 is an apocalyptic number.

1423321450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423321450 is a deficient number, since it is larger than the sum of its proper divisors (1315348130).

1423321450 is a wasteful number, since it uses less digits than its factorization.

1423321450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981642 (or 981637 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1423321450 is about 37726.9326874052. The cubic root of 1423321450 is about 1124.8665389004.

Adding to 1423321450 its reverse (541233241), we get a palindrome (1964554691).

The spelling of 1423321450 in words is "one billion, four hundred twenty-three million, three hundred twenty-one thousand, four hundred fifty".