1405432042 has 8 divisors (see below), whose sum is σ = 2409312096. Its totient is φ = 602328012.

The previous prime is 1405431991. The next prime is 1405432057. The reversal of 1405432042 is 2402345041.

It is a happy number.

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 = 1405431998 and 1405432016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50193988 + ... + 50194015.

It is an arithmetic number, because the mean of its divisors is an integer number (301164012).

Almost surely, 2^1405432042 is an apocalyptic number.

1405432042 is a deficient number, since it is larger than the sum of its proper divisors (1003880054).

1405432042 is a wasteful number, since it uses less digits than its factorization.

1405432042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100388012.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1405432042 is about 37489.0923069631. The cubic root of 1405432042 is about 1120.1339237176.

Adding to 1405432042 its reverse (2402345041), we get a palindrome (3807777083).

The spelling of 1405432042 in words is "one billion, four hundred five million, four hundred thirty-two thousand, forty-two".