1405071434 has 32 divisors (see below), whose sum is σ = 2289966336. Its totient is φ = 642744000.

The previous prime is 1405071433. The next prime is 1405071467. The reversal of 1405071434 is 4341705041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1405071397 and 1405071406.

It is not an unprimeable number, because it can be changed into a prime (1405071433) 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 15 ways as a sum of consecutive naturals, for example, 1870559 + ... + 1871309.

It is an arithmetic number, because the mean of its divisors is an integer number (71561448).

Almost surely, 2^1405071434 is an apocalyptic number.

1405071434 is a deficient number, since it is larger than the sum of its proper divisors (884894902).

1405071434 is a wasteful number, since it uses less digits than its factorization.

1405071434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1405071434 is about 37484.2824927996. The cubic root of 1405071434 is about 1120.0381136052.

Adding to 1405071434 its reverse (4341705041), we get a palindrome (5746776475).

The spelling of 1405071434 in words is "one billion, four hundred five million, seventy-one thousand, four hundred thirty-four".