1171625472 has 280 divisors, whose sum is σ = 3640660584. Its totient is φ = 376233984.

The previous prime is 1171625453. The next prime is 1171625503. The reversal of 1171625472 is 2745261711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 16049628 + ... + 16049700.

Almost surely, 2^1171625472 is an apocalyptic number.

1171625472 is a gapful number since it is divisible by the number (12) 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 1171625472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820330292).

1171625472 is an abundant number, since it is smaller than the sum of its proper divisors (2469035112).

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

1171625472 is an frugal number, since it uses more digits than its factorization.

1171625472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 121 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 1171625472 is about 34229.0150603256. The cubic root of 1171625472 is about 1054.2159960696.

The spelling of 1171625472 in words is "one billion, one hundred seventy-one million, six hundred twenty-five thousand, four hundred seventy-two".