2784662428 has 6 divisors (see below), whose sum is σ = 4873159256. Its totient is φ = 1392331212.

The previous prime is 2784662399. The next prime is 2784662429. The reversal of 2784662428 is 8242664872.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784662429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348082800 + ... + 348082807.

Almost surely, 2^2784662428 is an apocalyptic number.

It is an amenable number.

2784662428 is a deficient number, since it is larger than the sum of its proper divisors (2088496828).

2784662428 is a wasteful number, since it uses less digits than its factorization.

2784662428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696165611 (or 696165609 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 49.

The square root of 2784662428 is about 52769.9007768633. The cubic root of 2784662428 is about 1406.8814984757.

The spelling of 2784662428 in words is "two billion, seven hundred eighty-four million, six hundred sixty-two thousand, four hundred twenty-eight".