74542100 has 36 divisors (see below), whose sum is σ = 165710748. Its totient is φ = 29088000.

The previous prime is 74542081. The next prime is 74542121. The reversal of 74542100 is 124547.

It can be written as a sum of positive squares in 6 ways, for example, as 1507984 + 73034116 = 1228^2 + 8546^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4991 + ... + 13190.

Almost surely, 2^74542100 is an apocalyptic number.

It is an amenable number.

74542100 is an abundant number, since it is smaller than the sum of its proper divisors (91168648).

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

74542100 is a wasteful number, since it uses less digits than its factorization.

74542100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18236 (or 18229 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 74542100 is about 8633.7766938924. The cubic root of 74542100 is about 420.8563404952.

Adding to 74542100 its reverse (124547), we get a palindrome (74666647).

The spelling of 74542100 in words is "seventy-four million, five hundred forty-two thousand, one hundred".