1047400660 has 24 divisors (see below), whose sum is σ = 2200302720. Its totient is φ = 418815264.

The previous prime is 1047400639. The next prime is 1047400691. The reversal of 1047400660 is 660047401.

1047400660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64881 + ... + 79399.

It is an arithmetic number, because the mean of its divisors is an integer number (91679280).

Almost surely, 2^1047400660 is an apocalyptic number.

1047400660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047400660 is an abundant number, since it is smaller than the sum of its proper divisors (1152902060).

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

1047400660 is a wasteful number, since it uses less digits than its factorization.

1047400660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18135 (or 18133 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1047400660 is about 32363.5699514130. The cubic root of 1047400660 is about 1015.5569463955.

The spelling of 1047400660 in words is "one billion, forty-seven million, four hundred thousand, six hundred sixty".