1423402420 has 48 divisors (see below), whose sum is σ = 3263960448. Its totient is φ = 517112960.

The previous prime is 1423402373. The next prime is 1423402427. The reversal of 1423402420 is 242043241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1423402391 and 1423402400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423402427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298374 + ... + 303106.

It is an arithmetic number, because the mean of its divisors is an integer number (67999176).

Almost surely, 2^1423402420 is an apocalyptic number.

1423402420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423402420 is an abundant number, since it is smaller than the sum of its proper divisors (1840558028).

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

1423402420 is a wasteful number, since it uses less digits than its factorization.

1423402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120 (or 6118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1423402420 is about 37728.0057782014. The cubic root of 1423402420 is about 1124.8878689887.

Adding to 1423402420 its reverse (242043241), we get a palindrome (1665445661).

The spelling of 1423402420 in words is "one billion, four hundred twenty-three million, four hundred two thousand, four hundred twenty".