921614460 has 144 divisors (see below), whose sum is σ = 2826111456. Its totient is φ = 224280576.

The previous prime is 921614443. The next prime is 921614471. The reversal of 921614460 is 64416129.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 983112 + ... + 984048.

It is an arithmetic number, because the mean of its divisors is an integer number (19625774).

Almost surely, 2^921614460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 921614460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413055728).

921614460 is an abundant number, since it is smaller than the sum of its proper divisors (1904496996).

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

921614460 is a wasteful number, since it uses less digits than its factorization.

921614460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 921614460 is about 30358.1036957185. The cubic root of 921614460 is about 973.1574088855.

The spelling of 921614460 in words is "nine hundred twenty-one million, six hundred fourteen thousand, four hundred sixty".