1442646730 has 24 divisors (see below), whose sum is σ = 3020726628. Its totient is φ = 494621568.

The previous prime is 1442646727. The next prime is 1442646739. The reversal of 1442646730 is 376462441.

It can be written as a sum of positive squares in 2 ways, for example, as 1291036761 + 151609969 = 35931^2 + 12313^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1442646730.

It is not an unprimeable number, because it can be changed into a prime (1442646739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1471599 + ... + 1472578.

Almost surely, 2^1442646730 is an apocalyptic number.

1442646730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442646730 is an abundant number, since it is smaller than the sum of its proper divisors (1578079898).

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

1442646730 is a wasteful number, since it uses less digits than its factorization.

1442646730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944198 (or 2944191 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 1442646730 is about 37982.1896419888. The cubic root of 1442646730 is about 1129.9346635155.

The spelling of 1442646730 in words is "one billion, four hundred forty-two million, six hundred forty-six thousand, seven hundred thirty".