2709491445 has 16 divisors (see below), whose sum is σ = 4816873920. Its totient is φ = 1445062032.

The previous prime is 2709491441. The next prime is 2709491453. The reversal of 2709491445 is 5441949072.

It is not a de Polignac number, because 2709491445 - 2² = 2709491441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2709491445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2709491441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10035019 + ... + 10035288.

It is an arithmetic number, because the mean of its divisors is an integer number (301054620).

Almost surely, 2^2709491445 is an apocalyptic number.

It is an amenable number.

2709491445 is a deficient number, since it is larger than the sum of its proper divisors (2107382475).

2709491445 is a wasteful number, since it uses less digits than its factorization.

2709491445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20070321 (or 20070315 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2709491445 is about 52052.7755744110. The cubic root of 2709491445 is about 1394.1064227632.

The spelling of 2709491445 in words is "two billion, seven hundred nine million, four hundred ninety-one thousand, four hundred forty-five".