2749420457 has 8 divisors (see below), whose sum is σ = 3227119296. Its totient is φ = 2292952752.

The previous prime is 2749420451. The next prime is 2749420463. The reversal of 2749420457 is 7540249472.

2749420457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2749420451) and next prime (2749420463).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2749420457 - 2²⁰ = 2748371881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749420451) 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, 5307503 + ... + 5308020.

It is an arithmetic number, because the mean of its divisors is an integer number (403389912).

Almost surely, 2^2749420457 is an apocalyptic number.

It is an amenable number.

2749420457 is a deficient number, since it is larger than the sum of its proper divisors (477698839).

2749420457 is a wasteful number, since it uses less digits than its factorization.

2749420457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615567.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 2749420457 is about 52434.9163916564. The cubic root of 2749420457 is about 1400.9212400932.

The spelling of 2749420457 in words is "two billion, seven hundred forty-nine million, four hundred twenty thousand, four hundred fifty-seven".