1072378656 has 96 divisors (see below), whose sum is σ = 3133468800. Its totient is φ = 356808960.

The previous prime is 1072378633. The next prime is 1072378663. The reversal of 1072378656 is 6568732701.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1072378656² = 2299991963688732672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812365 + ... + 813683.

It is an arithmetic number, because the mean of its divisors is an integer number (32640300).

Almost surely, 2^1072378656 is an apocalyptic number.

1072378656 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 1072378656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566734400).

1072378656 is an abundant number, since it is smaller than the sum of its proper divisors (2061090144).

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

1072378656 is a wasteful number, since it uses less digits than its factorization.

1072378656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 1072378656 is about 32747.1931010888. The cubic root of 1072378656 is about 1023.5664770518.

The spelling of 1072378656 in words is "one billion, seventy-two million, three hundred seventy-eight thousand, six hundred fifty-six".