74163072 has 32 divisors (see below), whose sum is σ = 196996680. Its totient is φ = 24720896.

The previous prime is 74163071. The next prime is 74163079. The reversal of 74163072 is 27036147.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×74163072² = 11000322496954368, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74163071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96183 + ... + 96950.

Almost surely, 2^74163072 is an apocalyptic number.

It is an amenable number.

74163072 is an abundant number, since it is smaller than the sum of its proper divisors (122833608).

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

74163072 is a wasteful number, since it uses less digits than its factorization.

74163072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193150 (or 193138 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 74163072 is about 8611.7984184490. The cubic root of 74163072 is about 420.1418115229.

The spelling of 74163072 in words is "seventy-four million, one hundred sixty-three thousand, seventy-two".