2945720 has 16 divisors (see below), whose sum is σ = 6627960. Its totient is φ = 1178272.

The previous prime is 2945711. The next prime is 2945731. The reversal of 2945720 is 275492.

It is a congruent number.

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, 36782 + ... + 36861.

2^2945720 is an apocalyptic number.

2945720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2945720 is an abundant number, since it is smaller than the sum of its proper divisors (3682240).

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

2945720 is a wasteful number, since it uses less digits than its factorization.

2945720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73654 (or 73650 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2945720 is about 1716.3099953097. The cubic root of 2945720 is about 143.3498208304.

The spelling of 2945720 in words is "two million, nine hundred forty-five thousand, seven hundred twenty".