2720432 has 80 divisors (see below), whose sum is σ = 6562080. Its totient is φ = 1075200.

The previous prime is 2720411. The next prime is 2720441. The reversal of 2720432 is 2340272.

It is a happy number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66332 + ... + 66372.

It is an arithmetic number, because the mean of its divisors is an integer number (82026).

2^2720432 is an apocalyptic number.

2720432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2720432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3281040).

2720432 is an abundant number, since it is smaller than the sum of its proper divisors (3841648).

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

2720432 is a wasteful number, since it uses less digits than its factorization.

2720432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2720432 is about 1649.3732142847. The cubic root of 2720432 is about 139.5980306397.

The spelling of 2720432 in words is "two million, seven hundred twenty thousand, four hundred thirty-two".