74271642 has 8 divisors (see below), whose sum is σ = 148543296. Its totient is φ = 24757212.

The previous prime is 74271601. The next prime is 74271649. The reversal of 74271642 is 24617247.

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

74271642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (74271649) 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, 6189298 + ... + 6189309.

It is an arithmetic number, because the mean of its divisors is an integer number (18567912).

Almost surely, 2^74271642 is an apocalyptic number.

74271642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74271642 is a wasteful number, since it uses less digits than its factorization.

74271642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378612.

The product of its digits is 18816, while the sum is 33.

The square root of 74271642 is about 8618.0996745222. The cubic root of 74271642 is about 420.3467318167.

Adding to 74271642 its reverse (24617247), we get a palindrome (98888889).

The spelling of 74271642 in words is "seventy-four million, two hundred seventy-one thousand, six hundred forty-two".