1337920042 has 8 divisors (see below), whose sum is σ = 2009492100. Its totient is φ = 668089344.

The previous prime is 1337920039. The next prime is 1337920079. The reversal of 1337920042 is 2400297331.

It can be written as a sum of positive squares in 2 ways, for example, as 1142507601 + 195412441 = 33801^2 + 13979^2 .

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 = 1337919986 and 1337920013.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 433417 + ... + 436492.

Almost surely, 2^1337920042 is an apocalyptic number.

1337920042 is a deficient number, since it is larger than the sum of its proper divisors (671572058).

1337920042 is an equidigital number, since it uses as much as digits as its factorization.

1337920042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870680.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1337920042 is about 36577.5893410159. The cubic root of 1337920042 is about 1101.9030533850.

The spelling of 1337920042 in words is "one billion, three hundred thirty-seven million, nine hundred twenty thousand, forty-two".