1053646428 has 12 divisors (see below), whose sum is σ = 2458508360. Its totient is φ = 351215472.

The previous prime is 1053646427. The next prime is 1053646471. The reversal of 1053646428 is 8246463501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1053646428² = 2220341590474318368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053646427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43901923 + ... + 43901946.

Almost surely, 2^1053646428 is an apocalyptic number.

It is an amenable number.

1053646428 is an abundant number, since it is smaller than the sum of its proper divisors (1404861932).

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

1053646428 is a wasteful number, since it uses less digits than its factorization.

1053646428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87803876 (or 87803874 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1053646428 is about 32459.9203326194. The cubic root of 1053646428 is about 1017.5715739867.

The spelling of 1053646428 in words is "one billion, fifty-three million, six hundred forty-six thousand, four hundred twenty-eight".