1049845680 has 120 divisors (see below), whose sum is σ = 3796975728. Its totient is φ = 258421248.

The previous prime is 1049845637. The next prime is 1049845681. The reversal of 1049845680 is 865489401.

1049845680 is a `hidden beast` number, since 1 + 0 + 4 + 9 + 84 + 568 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1049845680² = 2204351903629324800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1049845681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46722 + ... + 65441.

Almost surely, 2^1049845680 is an apocalyptic number.

1049845680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049845680 is an abundant number, since it is smaller than the sum of its proper divisors (2747130048).

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

1049845680 is a wasteful number, since it uses less digits than its factorization.

1049845680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112195 (or 112186 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1049845680 is about 32401.3221952438. The cubic root of 1049845680 is about 1016.3465606337.

It can be divided in two parts, 1049845 and 680, that added together give a triangular number (1050525 = T₁₄₄₉).

The spelling of 1049845680 in words is "one billion, forty-nine million, eight hundred forty-five thousand, six hundred eighty".