1054636380 has 144 divisors (see below), whose sum is σ = 3694192320. Its totient is φ = 238546944.

The previous prime is 1054636369. The next prime is 1054636421. The reversal of 1054636380 is 836364501.

1054636380 is a `hidden beast` number, since 1 + 0 + 546 + 36 + 3 + 80 = 666.

It is a super-2 number, since 2×1054636380² = 2224515788039008800, 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 an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 117906 + ... + 126534.

Almost surely, 2^1054636380 is an apocalyptic number.

1054636380 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 1054636380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847096160).

1054636380 is an abundant number, since it is smaller than the sum of its proper divisors (2639555940).

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

1054636380 is a wasteful number, since it uses less digits than its factorization.

1054636380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748 (or 8743 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1054636380 is about 32475.1655884924. The cubic root of 1054636380 is about 1017.8901602058.

The spelling of 1054636380 in words is "one billion, fifty-four million, six hundred thirty-six thousand, three hundred eighty".