1420540042 has 8 divisors (see below), whose sum is σ = 2138732100. Its totient is φ = 707629344.

The previous prime is 1420540039. The next prime is 1420540049. The reversal of 1420540042 is 2400450241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1416092161 + 4447881 = 37631^2 + 2109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1420539995 and 1420540022.

It is not an unprimeable number, because it can be changed into a prime (1420540049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319667 + ... + 1320742.

Almost surely, 2^1420540042 is an apocalyptic number.

1420540042 is a deficient number, since it is larger than the sum of its proper divisors (718192058).

1420540042 is a wasteful number, since it uses less digits than its factorization.

1420540042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640680.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1420540042 is about 37690.0522950022. The cubic root of 1420540042 is about 1124.1333353515.

Adding to 1420540042 its reverse (2400450241), we get a palindrome (3820990283).

The spelling of 1420540042 in words is "one billion, four hundred twenty million, five hundred forty thousand, forty-two".