1197432720 has 400 divisors, whose sum is σ = 4608508608. Its totient is φ = 285742080.

The previous prime is 1197432703. The next prime is 1197432721. The reversal of 1197432720 is 272347911.

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

It is not an unprimeable number, because it can be changed into a prime (1197432721) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7626882 + ... + 7627038.

Almost surely, 2^1197432720 is an apocalyptic number.

1197432720 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 1197432720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304254304).

1197432720 is an abundant number, since it is smaller than the sum of its proper divisors (3411075888).

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

1197432720 is a wasteful number, since it uses less digits than its factorization.

1197432720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1197432720 is about 34603.9408160400. The cubic root of 1197432720 is about 1061.9002108670.

The spelling of 1197432720 in words is "one billion, one hundred ninety-seven million, four hundred thirty-two thousand, seven hundred twenty".