2720509429 has 8 divisors (see below), whose sum is σ = 2992357440. Its totient is φ = 2473189180.

The previous prime is 2720509427. The next prime is 2720509447. The reversal of 2720509429 is 9249050272.

It is not a de Polignac number, because 2720509429 - 2¹ = 2720509427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2720509391 and 2720509400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720509427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020649 + ... + 1023310.

It is an arithmetic number, because the mean of its divisors is an integer number (374044680).

Almost surely, 2^2720509429 is an apocalyptic number.

It is an amenable number.

2720509429 is a deficient number, since it is larger than the sum of its proper divisors (271848011).

2720509429 is an equidigital number, since it uses as much as digits as its factorization.

2720509429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043992 (or 2043970 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 2720509429 is about 52158.5029405561. The cubic root of 2720509429 is about 1395.9935504131.

The spelling of 2720509429 in words is "two billion, seven hundred twenty million, five hundred nine thousand, four hundred twenty-nine".