1171406320 has 40 divisors (see below), whose sum is σ = 3112595424. Its totient is φ = 401624832.

The previous prime is 1171406311. The next prime is 1171406329. The reversal of 1171406320 is 236041711.

It is an interprime number because it is at equal distance from previous prime (1171406311) and next prime (1171406329).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171406329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045339 + ... + 1046458.

Almost surely, 2^1171406320 is an apocalyptic number.

1171406320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171406320 is an abundant number, since it is smaller than the sum of its proper divisors (1941189104).

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

1171406320 is a wasteful number, since it uses less digits than its factorization.

1171406320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091817 (or 2091811 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1171406320 is about 34225.8136499339. The cubic root of 1171406320 is about 1054.1502617669.

The spelling of 1171406320 in words is "one billion, one hundred seventy-one million, four hundred six thousand, three hundred twenty".