1013550444 has 36 divisors (see below), whose sum is σ = 2569403200. Its totient is φ = 336877920.

The previous prime is 1013550443. The next prime is 1013550481. The reversal of 1013550444 is 4440553101.

It is a happy number.

1013550444 is a `hidden beast` number, since 101 + 3 + 550 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1013550443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27772 + ... + 52899.

Almost surely, 2^1013550444 is an apocalyptic number.

It is an amenable number.

1013550444 is an abundant number, since it is smaller than the sum of its proper divisors (1555852756).

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

1013550444 is a wasteful number, since it uses less digits than its factorization.

1013550444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81030 (or 81025 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1013550444 is about 31836.3070094507. The cubic root of 1013550444 is about 1004.4965652620.

The spelling of 1013550444 in words is "one billion, thirteen million, five hundred fifty thousand, four hundred forty-four".