1405315042 has 16 divisors (see below), whose sum is σ = 2227472640. Its totient is φ = 663597792.

The previous prime is 1405315039. The next prime is 1405315049. The reversal of 1405315042 is 2405135041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1405314998 and 1405315016.

It is not an unprimeable number, because it can be changed into a prime (1405315049) 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, 189723 + ... + 196990.

It is an arithmetic number, because the mean of its divisors is an integer number (139217040).

Almost surely, 2^1405315042 is an apocalyptic number.

1405315042 is a deficient number, since it is larger than the sum of its proper divisors (822157598).

1405315042 is a wasteful number, since it uses less digits than its factorization.

1405315042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386817.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1405315042 is about 37487.5318205934. The cubic root of 1405315042 is about 1120.1028397278.

The spelling of 1405315042 in words is "one billion, four hundred five million, three hundred fifteen thousand, forty-two".