2909472 has 24 divisors (see below), whose sum is σ = 7637616. Its totient is φ = 969792.

The previous prime is 2909461. The next prime is 2909513. The reversal of 2909472 is 2749092.

It is a tau number, because it is divible by the number of its divisors (24).

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15058 + ... + 15249.

It is an arithmetic number, because the mean of its divisors is an integer number (318234).

2^2909472 is an apocalyptic number.

It is an amenable number.

2909472 is an abundant number, since it is smaller than the sum of its proper divisors (4728144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2909472 is a wasteful number, since it uses less digits than its factorization.

2909472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30320 (or 30312 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2909472 is about 1705.7174443618. The cubic root of 2909472 is about 142.7594043837.

The spelling of 2909472 in words is "two million, nine hundred nine thousand, four hundred seventy-two".