1442690493 has 16 divisors (see below), whose sum is σ = 2034074112. Its totient is φ = 908064000.

The previous prime is 1442690489. The next prime is 1442690503. The reversal of 1442690493 is 3940962441.

It is not a de Polignac number, because 1442690493 - 2² = 1442690489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442690453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185368 + ... + 192993.

It is an arithmetic number, because the mean of its divisors is an integer number (127129632).

Almost surely, 2^1442690493 is an apocalyptic number.

It is an amenable number.

1442690493 is a deficient number, since it is larger than the sum of its proper divisors (591383619).

1442690493 is a wasteful number, since it uses less digits than its factorization.

1442690493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378436.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 1442690493 is about 37982.7657365811. The cubic root of 1442690493 is about 1129.9460890040.

The spelling of 1442690493 in words is "one billion, four hundred forty-two million, six hundred ninety thousand, four hundred ninety-three".