2730442428 has 72 divisors (see below), whose sum is σ = 8142417920. Its totient is φ = 754958880.

The previous prime is 2730442399. The next prime is 2730442441. The reversal of 2730442428 is 8242440372.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2730442392 and 2730442401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166948 + ... + 182571.

Almost surely, 2^2730442428 is an apocalyptic number.

2730442428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2730442428 is an abundant number, since it is smaller than the sum of its proper divisors (5411975492).

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

2730442428 is a wasteful number, since it uses less digits than its factorization.

2730442428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349567 (or 349562 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 2730442428 is about 52253.6355481607. The cubic root of 2730442428 is about 1397.6904826638.

The spelling of 2730442428 in words is "two billion, seven hundred thirty million, four hundred forty-two thousand, four hundred twenty-eight".