1235398752 has 72 divisors (see below), whose sum is σ = 4015052496. Its totient is φ = 352970496.

The previous prime is 1235398727. The next prime is 1235398777. The reversal of 1235398752 is 2578935321.

It is an interprime number because it is at equal distance from previous prime (1235398727) and next prime (1235398777).

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 1235398698 and 1235398707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304383 + ... + 308414.

It is an arithmetic number, because the mean of its divisors is an integer number (55764618).

Almost surely, 2^1235398752 is an apocalyptic number.

1235398752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1235398752 is an abundant number, since it is smaller than the sum of its proper divisors (2779653744).

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

1235398752 is a wasteful number, since it uses less digits than its factorization.

1235398752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612820 (or 612809 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 1235398752 is about 35148.2396714259. The cubic root of 1235398752 is about 1073.0065822079.

The spelling of 1235398752 in words is "one billion, two hundred thirty-five million, three hundred ninety-eight thousand, seven hundred fifty-two".