2907072 has 126 divisors (see below), whose sum is σ = 9787128. Its totient is φ = 822528.

The previous prime is 2907067. The next prime is 2907089. The reversal of 2907072 is 2707092.

It is a tau number, because it is divible by the number of its divisors (126).

It is a super-2 number, since 2×2907072² = 16902135226368, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28173 + ... + 28275.

2^2907072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2907072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4893564).

2907072 is an abundant number, since it is smaller than the sum of its proper divisors (6880056).

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

2907072 is a wasteful number, since it uses less digits than its factorization.

2907072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 2907072 is about 1705.0137829355. The cubic root of 2907072 is about 142.7201398914.

The spelling of 2907072 in words is "two million, nine hundred seven thousand, seventy-two".