1605051434 has 16 divisors (see below), whose sum is σ = 2779885248. Its totient is φ = 680787072.

The previous prime is 1605051421. The next prime is 1605051439. The reversal of 1605051434 is 4341505061.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1605051397 and 1605051406.

It is not an unprimeable number, because it can be changed into a prime (1605051439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589604 + ... + 592319.

It is an arithmetic number, because the mean of its divisors is an integer number (173742828).

Almost surely, 2^1605051434 is an apocalyptic number.

1605051434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1605051434 is a deficient number, since it is larger than the sum of its proper divisors (1174833814).

1605051434 is a wasteful number, since it uses less digits than its factorization.

1605051434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182029.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1605051434 is about 40063.0931656556. The cubic root of 1605051434 is about 1170.8366757547.

Adding to 1605051434 its reverse (4341505061), we get a palindrome (5946556495).

The spelling of 1605051434 in words is "one billion, six hundred five million, fifty-one thousand, four hundred thirty-four".