1200752928 has 36 divisors (see below), whose sum is σ = 3414641958. Its totient is φ = 400250880.

The previous prime is 1200752921. The next prime is 1200752929. The reversal of 1200752928 is 8292570021.

1200752928 is a `hidden beast` number, since 120 + 0 + 7 + 529 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 635644944 + 565107984 = 25212^2 + 23772^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) 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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 1200752892 and 1200752901.

It is not an unprimeable number, because it can be changed into a prime (1200752921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2084353 + ... + 2084928.

Almost surely, 2^1200752928 is an apocalyptic number.

1200752928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1200752928 is an abundant number, since it is smaller than the sum of its proper divisors (2213889030).

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

1200752928 is a wasteful number, since it uses less digits than its factorization.

1200752928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169297 (or 4169286 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1200752928 is about 34651.8820268106. The cubic root of 1200752928 is about 1062.8807742132.

The spelling of 1200752928 in words is "one billion, two hundred million, seven hundred fifty-two thousand, nine hundred twenty-eight".