1272832370 has 16 divisors (see below), whose sum is σ = 2329931520. Its totient is φ = 500503344.

The previous prime is 1272832369. The next prime is 1272832373. The reversal of 1272832370 is 732382721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272832370.

It is not an unprimeable number, because it can be changed into a prime (1272832373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078082 + ... + 1079261.

It is an arithmetic number, because the mean of its divisors is an integer number (145620720).

Almost surely, 2^1272832370 is an apocalyptic number.

1272832370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272832370 is a deficient number, since it is larger than the sum of its proper divisors (1057099150).

1272832370 is a wasteful number, since it uses less digits than its factorization.

1272832370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157409.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1272832370 is about 35676.7763397984. The cubic root of 1272832370 is about 1083.7365913855.

The spelling of 1272832370 in words is "one billion, two hundred seventy-two million, eight hundred thirty-two thousand, three hundred seventy".