1072373409 has 12 divisors (see below), whose sum is σ = 1586764452. Its totient is φ = 697478400.

The previous prime is 1072373399. The next prime is 1072373417. The reversal of 1072373409 is 9043732701.

1072373409 is a `hidden beast` number, since 10 + 7 + 237 + 3 + 409 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46580625 + 1025792784 = 6825^2 + 32028^2 .

It is not a de Polignac number, because 1072373409 - 2¹⁵ = 1072340641 is a prime.

It is a super-2 number, since 2×1072373409² = 2299969456660562562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1072373609) by changing a digit.

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, 1452712 + ... + 1453449.

It is an arithmetic number, because the mean of its divisors is an integer number (132230371).

Almost surely, 2^1072373409 is an apocalyptic number.

It is an amenable number.

1072373409 is a deficient number, since it is larger than the sum of its proper divisors (514391043).

1072373409 is a wasteful number, since it uses less digits than its factorization.

1072373409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906208 (or 2906205 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1072373409 is about 32747.1129872543. The cubic root of 1072373409 is about 1023.5648076595.

The spelling of 1072373409 in words is "one billion, seventy-two million, three hundred seventy-three thousand, four hundred nine".