1200897720 has 96 divisors (see below), whose sum is σ = 4257742320. Its totient is φ = 291125760.

The previous prime is 1200897707. The next prime is 1200897739. The reversal of 1200897720 is 277980021.

1200897720 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 147669 + ... + 155588.

Almost surely, 2^1200897720 is an apocalyptic number.

1200897720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200897720 is an abundant number, since it is smaller than the sum of its proper divisors (3056844600).

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

1200897720 is a wasteful number, since it uses less digits than its factorization.

1200897720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303285 (or 303278 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1200897720 is about 34653.9712010038. The cubic root of 1200897720 is about 1062.9234947552.

The spelling of 1200897720 in words is "one billion, two hundred million, eight hundred ninety-seven thousand, seven hundred twenty".