1172214720 has 224 divisors, whose sum is σ = 4161373440. Its totient is φ = 310625280.

The previous prime is 1172214707. The next prime is 1172214731. The reversal of 1172214720 is 274122711.

It is a happy number.

1172214720 is a `hidden beast` number, since 1 + 172 + 21 + 472 + 0 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1822719 + ... + 1823361.

It is an arithmetic number, because the mean of its divisors is an integer number (18577560).

Almost surely, 2^1172214720 is an apocalyptic number.

1172214720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172214720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2080686720).

1172214720 is an abundant number, since it is smaller than the sum of its proper divisors (2989158720).

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

1172214720 is a wasteful number, since it uses less digits than its factorization.

1172214720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1172214720 is about 34237.6214127091. The cubic root of 1172214720 is about 1054.3926994535.

The spelling of 1172214720 in words is "one billion, one hundred seventy-two million, two hundred fourteen thousand, seven hundred twenty".