1072346405 has 12 divisors (see below), whose sum is σ = 1393416900. Its totient is φ = 791885952.

The previous prime is 1072346393. The next prime is 1072346419. The reversal of 1072346405 is 5046432701.

It can be written as a sum of positive squares in 6 ways, for example, as 85507009 + 986839396 = 9247^2 + 31414^2 .

It is not a de Polignac number, because 1072346405 - 2²⁸ = 803910949 is a prime.

It is a super-2 number, since 2×1072346405² = 2299853624632848050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633680 + ... + 635369.

It is an arithmetic number, because the mean of its divisors is an integer number (116118075).

Almost surely, 2^1072346405 is an apocalyptic number.

It is an amenable number.

1072346405 is a deficient number, since it is larger than the sum of its proper divisors (321070495).

1072346405 is a wasteful number, since it uses less digits than its factorization.

1072346405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269080 (or 1269067 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1072346405 is about 32746.7006735030. The cubic root of 1072346405 is about 1023.5562159457.

The spelling of 1072346405 in words is "one billion, seventy-two million, three hundred forty-six thousand, four hundred five".