1086578772 has 12 divisors (see below), whose sum is σ = 2535350496. Its totient is φ = 362192920.

The previous prime is 1086578767. The next prime is 1086578789. The reversal of 1086578772 is 2778756801.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1086578772² = 2361306855522055968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45274104 + ... + 45274127.

It is an arithmetic number, because the mean of its divisors is an integer number (211279208).

Almost surely, 2^1086578772 is an apocalyptic number.

1086578772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1086578772 is an abundant number, since it is smaller than the sum of its proper divisors (1448771724).

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

1086578772 is a wasteful number, since it uses less digits than its factorization.

1086578772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90548238 (or 90548236 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 51.

The square root of 1086578772 is about 32963.2943135239. The cubic root of 1086578772 is about 1028.0646007539.

The spelling of 1086578772 in words is "one billion, eighty-six million, five hundred seventy-eight thousand, seven hundred seventy-two".