2720052638 has 4 divisors (see below), whose sum is σ = 4080078960. Its totient is φ = 1360026318.

The previous prime is 2720052619. The next prime is 2720052661. The reversal of 2720052638 is 8362500272.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2720052598 and 2720052607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680013158 + ... + 680013161.

It is an arithmetic number, because the mean of its divisors is an integer number (1020019740).

Almost surely, 2^2720052638 is an apocalyptic number.

2720052638 is a deficient number, since it is larger than the sum of its proper divisors (1360026322).

2720052638 is a wasteful number, since it uses less digits than its factorization.

2720052638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360026321.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2720052638 is about 52154.1238829683. The cubic root of 2720052638 is about 1395.9154139464.

The spelling of 2720052638 in words is "two billion, seven hundred twenty million, fifty-two thousand, six hundred thirty-eight".