74172248 has 16 divisors (see below), whose sum is σ = 142307880. Its totient is φ = 36223488.

The previous prime is 74172247. The next prime is 74172269. The reversal of 74172248 is 84227147.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74172247) 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, 107465 + ... + 108152.

Almost surely, 2^74172248 is an apocalyptic number.

It is an amenable number.

74172248 is a deficient number, since it is larger than the sum of its proper divisors (68135632).

74172248 is a wasteful number, since it uses less digits than its factorization.

74172248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215666 (or 215662 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 74172248 is about 8612.3311594481. The cubic root of 74172248 is about 420.1591384853.

The spelling of 74172248 in words is "seventy-four million, one hundred seventy-two thousand, two hundred forty-eight".