921442495384 has 24 divisors (see below), whose sum is σ = 1785234922380. Its totient is φ = 445859268240.

The previous prime is 921442495361. The next prime is 921442495397. The reversal of 921442495384 is 483594244129.

It is a super-2 number, since 2×921442495384² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 59919634 + ... + 59935009.

Almost surely, 2^921442495384 is an apocalyptic number.

It is an amenable number.

921442495384 is a deficient number, since it is larger than the sum of its proper divisors (863792426996).

921442495384 is a wasteful number, since it uses less digits than its factorization.

921442495384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119854711 (or 119854676 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 55.

The spelling of 921442495384 in words is "nine hundred twenty-one billion, four hundred forty-two million, four hundred ninety-five thousand, three hundred eighty-four".