74163745 has 8 divisors (see below), whose sum is σ = 93680640. Its totient is φ = 56208240.

The previous prime is 74163743. The next prime is 74163773. The reversal of 74163745 is 54736147.

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

It is not a de Polignac number, because 74163745 - 2¹ = 74163743 is a prime.

It is a super-2 number, since 2×74163745² = 11000522144850050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74163743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390241 + ... + 390430.

It is an arithmetic number, because the mean of its divisors is an integer number (11710080).

Almost surely, 2^74163745 is an apocalyptic number.

It is an amenable number.

74163745 is a deficient number, since it is larger than the sum of its proper divisors (19516895).

74163745 is a wasteful number, since it uses less digits than its factorization.

74163745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780695.

The product of its digits is 70560, while the sum is 37.

The square root of 74163745 is about 8611.8374926609. The cubic root of 74163745 is about 420.1430823916.

The spelling of 74163745 in words is "seventy-four million, one hundred sixty-three thousand, seven hundred forty-five".