74221016 has 16 divisors (see below), whose sum is σ = 140729400. Its totient is φ = 36693184.

The previous prime is 74221003. The next prime is 74221019. The reversal of 74221016 is 61012247.

It is a junction number, because it is equal to n+sod(n) for n = 74220982 and 74221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74221019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51410 + ... + 52833.

Almost surely, 2^74221016 is an apocalyptic number.

It is an amenable number.

74221016 is a deficient number, since it is larger than the sum of its proper divisors (66508384).

74221016 is a wasteful number, since it uses less digits than its factorization.

74221016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104338 (or 104334 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 74221016 is about 8615.1619833872. The cubic root of 74221016 is about 420.2512027109.

The spelling of 74221016 in words is "seventy-four million, two hundred twenty-one thousand, sixteen".