74635242 has 32 divisors (see below), whose sum is σ = 164436480. Its totient is φ = 22395120.

The previous prime is 74635237. The next prime is 74635247. The reversal of 74635242 is 24253647.

It is an interprime number because it is at equal distance from previous prime (74635237) and next prime (74635247).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (74635247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (5138640).

Almost surely, 2^74635242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74635242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82218240).

74635242 is an abundant number, since it is smaller than the sum of its proper divisors (89801238).

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

74635242 is a wasteful number, since it uses less digits than its factorization.

74635242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11098.

The product of its digits is 40320, while the sum is 33.

The square root of 74635242 is about 8639.1690572647. The cubic root of 74635242 is about 421.0315572999.

Adding to 74635242 its reverse (24253647), we get a palindrome (98888889).

The spelling of 74635242 in words is "seventy-four million, six hundred thirty-five thousand, two hundred forty-two".