1423055040 has 224 divisors, whose sum is σ = 5219541504. Its totient is φ = 324648960.

The previous prime is 1423055033. The next prime is 1423055041. The reversal of 1423055040 is 405503241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1423055040.

It is not an unprimeable number, because it can be changed into a prime (1423055041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175557 + ... + 183483.

Almost surely, 2^1423055040 is an apocalyptic number.

1423055040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423055040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609770752).

1423055040 is an abundant number, since it is smaller than the sum of its proper divisors (3796486464).

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

1423055040 is a wasteful number, since it uses less digits than its factorization.

1423055040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975 (or 7965 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1423055040 is about 37723.4017554091. The cubic root of 1423055040 is about 1124.7963522737.

Adding to 1423055040 its reverse (405503241), we get a palindrome (1828558281).

The spelling of 1423055040 in words is "one billion, four hundred twenty-three million, fifty-five thousand, forty".