1420024040 has 16 divisors (see below), whose sum is σ = 3195054180. Its totient is φ = 568009600.

The previous prime is 1420024003. The next prime is 1420024049. The reversal of 1420024040 is 404200241.

It can be written as a sum of positive squares in 2 ways, for example, as 1390842436 + 29181604 = 37294^2 + 5402^2 .

It is not an unprimeable number, because it can be changed into a prime (1420024049) 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, 17750261 + ... + 17750340.

Almost surely, 2^1420024040 is an apocalyptic number.

1420024040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420024040 is an abundant number, since it is smaller than the sum of its proper divisors (1775030140).

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

1420024040 is a wasteful number, since it uses less digits than its factorization.

1420024040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35500612 (or 35500608 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1420024040 is about 37683.2063391639. The cubic root of 1420024040 is about 1123.9972074752.

Adding to 1420024040 its reverse (404200241), we get a palindrome (1824224281).

The spelling of 1420024040 in words is "one billion, four hundred twenty million, twenty-four thousand, forty".