7045281408 has 64 divisors (see below), whose sum is σ = 20415316320. Its totient is φ = 2134932480.

The previous prime is 7045281401. The next prime is 7045281461. The reversal of 7045281408 is 8041825407.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (7045281401) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 829735 + ... + 838182.

Almost surely, 2^7045281408 is an apocalyptic number.

It is an amenable number.

7045281408 is an abundant number, since it is smaller than the sum of its proper divisors (13370034912).

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

7045281408 is a wasteful number, since it uses less digits than its factorization.

7045281408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667945 (or 1667933 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 7045281408 is about 83936.1746090445. The cubic root of 7045281408 is about 1917.0470927826.

The spelling of 7045281408 in words is "seven billion, forty-five million, two hundred eighty-one thousand, four hundred eight".