921416342 has 64 divisors (see below), whose sum is σ = 1779148800. Its totient is φ = 347518080.

The previous prime is 921416339. The next prime is 921416359. The reversal of 921416342 is 243614129.

It is a junction number, because it is equal to n+sod(n) for n = 921416299 and 921416308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 644084 + ... + 645512.

It is an arithmetic number, because the mean of its divisors is an integer number (27799200).

Almost surely, 2^921416342 is an apocalyptic number.

921416342 is a deficient number, since it is larger than the sum of its proper divisors (857732458).

921416342 is a wasteful number, since it uses less digits than its factorization.

921416342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581.

The product of its digits is 10368, while the sum is 32.

The square root of 921416342 is about 30354.8405036166. The cubic root of 921416342 is about 973.0876711862.

The spelling of 921416342 in words is "nine hundred twenty-one million, four hundred sixteen thousand, three hundred forty-two".