1053778840 has 32 divisors (see below), whose sum is σ = 2371944960. Its totient is φ = 421344000.

The previous prime is 1053778837. The next prime is 1053778841. The reversal of 1053778840 is 488773501.

It is a super-2 number, since 2×1053778840² = 2220899687263491200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053778841) 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, 164905 + ... + 171175.

It is an arithmetic number, because the mean of its divisors is an integer number (74123280).

Almost surely, 2^1053778840 is an apocalyptic number.

1053778840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1053778840 is an abundant number, since it is smaller than the sum of its proper divisors (1318166120).

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

1053778840 is a wasteful number, since it uses less digits than its factorization.

1053778840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10483 (or 10479 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 1053778840 is about 32461.9598915407. The cubic root of 1053778840 is about 1017.6141983560.

The spelling of 1053778840 in words is "one billion, fifty-three million, seven hundred seventy-eight thousand, eight hundred forty".