1054561040 has 80 divisors (see below), whose sum is σ = 2755323648. Its totient is φ = 372438528.

The previous prime is 1054561033. The next prime is 1054561049. The reversal of 1054561040 is 401654501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1054561040² = 2224197974171763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1054561049) 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, 1877 + ... + 45963.

Almost surely, 2^1054561040 is an apocalyptic number.

1054561040 is a gapful number since it is divisible by the number (10) 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 1054561040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377661824).

1054561040 is an abundant number, since it is smaller than the sum of its proper divisors (1700762608).

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

1054561040 is a wasteful number, since it uses less digits than its factorization.

1054561040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44136 (or 44130 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1054561040 is about 32474.0056044831. The cubic root of 1054561040 is about 1017.8659213079.

The spelling of 1054561040 in words is "one billion, fifty-four million, five hundred sixty-one thousand, forty".