1442470831 has 4 divisors (see below), whose sum is σ = 1442686464. Its totient is φ = 1442255200.

The previous prime is 1442470807. The next prime is 1442470847. The reversal of 1442470831 is 1380742441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1442470831 - 2⁹ = 1442470319 is a prime.

It is a super-2 number, since 2×1442470831² = 4161444196571661122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442470871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97450 + ... + 111271.

It is an arithmetic number, because the mean of its divisors is an integer number (360671616).

Almost surely, 2^1442470831 is an apocalyptic number.

1442470831 is a deficient number, since it is larger than the sum of its proper divisors (215633).

1442470831 is an equidigital number, since it uses as much as digits as its factorization.

1442470831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215632.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 1442470831 is about 37979.8740255941. The cubic root of 1442470831 is about 1129.8887380990. Note that the first 3 decimals are identical.

The spelling of 1442470831 in words is "one billion, four hundred forty-two million, four hundred seventy thousand, eight hundred thirty-one".