1573940089 has 4 divisors (see below), whose sum is σ = 1607428224. Its totient is φ = 1540451956.

The previous prime is 1573940047. The next prime is 1573940101. The reversal of 1573940089 is 9800493751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1573940089 - 2¹⁹ = 1573415801 is a prime.

It is a super-2 number, since 2×1573940089² = 4954574807522655842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1573940689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16743997 + ... + 16744090.

It is an arithmetic number, because the mean of its divisors is an integer number (401857056).

Almost surely, 2^1573940089 is an apocalyptic number.

It is an amenable number.

1573940089 is a deficient number, since it is larger than the sum of its proper divisors (33488135).

1573940089 is an equidigital number, since it uses as much as digits as its factorization.

1573940089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33488134.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1573940089 is about 39672.9137951827. The cubic root of 1573940089 is about 1163.2223348108. Note that the first 3 decimals are identical.

The spelling of 1573940089 in words is "one billion, five hundred seventy-three million, nine hundred forty thousand, eighty-nine".