1051220544 has 56 divisors (see below), whose sum is σ = 3034210848. Its totient is φ = 318551040.

The previous prime is 1051220539. The next prime is 1051220557. The reversal of 1051220544 is 4450221501.

It is a super-2 number, since 2×1051220544² = 2210129264255311872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246757 + ... + 250980.

Almost surely, 2^1051220544 is an apocalyptic number.

It is an amenable number.

1051220544 is an abundant number, since it is smaller than the sum of its proper divisors (1982990304).

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

1051220544 is a wasteful number, since it uses less digits than its factorization.

1051220544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497763 (or 497753 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1051220544 is about 32422.5314249212. The cubic root of 1051220544 is about 1016.7900317677.

The spelling of 1051220544 in words is "one billion, fifty-one million, two hundred twenty thousand, five hundred forty-four".