1054722816 has 144 divisors (see below), whose sum is σ = 3564736000. Its totient is φ = 301335552.

The previous prime is 1054722811. The next prime is 1054722847. The reversal of 1054722816 is 6182274501.

1054722816 is a `hidden beast` number, since 10 + 547 + 22 + 81 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1054722816² = 2224880437181939712, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054722811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37485 + ... + 59283.

Almost surely, 2^1054722816 is an apocalyptic number.

1054722816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1054722816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782368000).

1054722816 is an abundant number, since it is smaller than the sum of its proper divisors (2510013184).

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

1054722816 is an equidigital number, since it uses as much as digits as its factorization.

1054722816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21831 (or 21811 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1054722816 is about 32476.4963627544. The cubic root of 1054722816 is about 1017.9179675627.

The spelling of 1054722816 in words is "one billion, fifty-four million, seven hundred twenty-two thousand, eight hundred sixteen".