1423022040 has 128 divisors (see below), whose sum is σ = 5174668800. Its totient is φ = 344972160.

The previous prime is 1423022039. The next prime is 1423022063. The reversal of 1423022040 is 402203241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48012 + ... + 71771.

It is an arithmetic number, because the mean of its divisors is an integer number (40427100).

Almost surely, 2^1423022040 is an apocalyptic number.

1423022040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423022040 is an abundant number, since it is smaller than the sum of its proper divisors (3751646760).

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

1423022040 is a wasteful number, since it uses less digits than its factorization.

1423022040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119814 (or 119804 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1423022040 is about 37722.9643585973. The cubic root of 1423022040 is about 1124.7876577010.

Adding to 1423022040 its reverse (402203241), we get a palindrome (1825225281).

The spelling of 1423022040 in words is "one billion, four hundred twenty-three million, twenty-two thousand, forty".