1420405242 has 16 divisors (see below), whose sum is σ = 2842801920. Its totient is φ = 473136512.

The previous prime is 1420405237. The next prime is 1420405243. The reversal of 1420405242 is 2425040241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1420405243) 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 7 ways as a sum of consecutive naturals, for example, 73623 + ... + 90890.

It is an arithmetic number, because the mean of its divisors is an integer number (177675120).

Almost surely, 2^1420405242 is an apocalyptic number.

1420405242 is an abundant number, since it is smaller than the sum of its proper divisors (1422396678).

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

1420405242 is a wasteful number, since it uses less digits than its factorization.

1420405242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165957.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1420405242 is about 37688.2639823062. The cubic root of 1420405242 is about 1124.0977765822.

Adding to 1420405242 its reverse (2425040241), we get a palindrome (3845445483).

The spelling of 1420405242 in words is "one billion, four hundred twenty million, four hundred five thousand, two hundred forty-two".