1316407776 has 48 divisors (see below), whose sum is σ = 3457440000. Its totient is φ = 438565248.

The previous prime is 1316407769. The next prime is 1316407831. The reversal of 1316407776 is 6777046131.

1316407776 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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, 333945 + ... + 337863.

It is an arithmetic number, because the mean of its divisors is an integer number (72030000).

Almost surely, 2^1316407776 is an apocalyptic number.

1316407776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1316407776 is an abundant number, since it is smaller than the sum of its proper divisors (2141032224).

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

1316407776 is a wasteful number, since it uses less digits than its factorization.

1316407776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431 (or 7423 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 1316407776 is about 36282.3342137741. The cubic root of 1316407776 is about 1095.9653229300.

The spelling of 1316407776 in words is "one billion, three hundred sixteen million, four hundred seven thousand, seven hundred seventy-six".