921416530 has 8 divisors (see below), whose sum is σ = 1658549772. Its totient is φ = 368566608.

The previous prime is 921416527. The next prime is 921416543. The reversal of 921416530 is 35614129.

It can be written as a sum of positive squares in 2 ways, for example, as 919363041 + 2053489 = 30321^2 + 1433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 921416492 and 921416501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46070817 + ... + 46070836.

Almost surely, 2^921416530 is an apocalyptic number.

921416530 is a deficient number, since it is larger than the sum of its proper divisors (737133242).

921416530 is a wasteful number, since it uses less digits than its factorization.

921416530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92141660.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 921416530 is about 30354.8436003218. The cubic root of 921416530 is about 973.0877373671.

The spelling of 921416530 in words is "nine hundred twenty-one million, four hundred sixteen thousand, five hundred thirty".