1235438372 has 18 divisors (see below), whose sum is σ = 2514999942. Its totient is φ = 529473504.

The previous prime is 1235438333. The next prime is 1235438423. The reversal of 1235438372 is 2738345321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 812478016 + 422960356 = 28504^2 + 20566^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3151433 + ... + 3151824.

It is an arithmetic number, because the mean of its divisors is an integer number (139722219).

Almost surely, 2^1235438372 is an apocalyptic number.

It is an amenable number.

1235438372 is an abundant number, since it is smaller than the sum of its proper divisors (1279561570).

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

1235438372 is a wasteful number, since it uses less digits than its factorization.

1235438372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303275 (or 6303266 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 1235438372 is about 35148.8032797704. The cubic root of 1235438372 is about 1073.0180527463.

The spelling of 1235438372 in words is "one billion, two hundred thirty-five million, four hundred thirty-eight thousand, three hundred seventy-two".