74111142 has 32 divisors (see below), whose sum is σ = 174864384. Its totient is φ = 20491200.

The previous prime is 74111131. The next prime is 74111159. The reversal of 74111142 is 24111147.

It is a super-2 number, since 2×74111142² = 10984922737088328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27159 + ... + 29762.

It is an arithmetic number, because the mean of its divisors is an integer number (5464512).

Almost surely, 2^74111142 is an apocalyptic number.

74111142 is an abundant number, since it is smaller than the sum of its proper divisors (100753242).

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

74111142 is a wasteful number, since it uses less digits than its factorization.

74111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56964.

The product of its digits is 224, while the sum is 21.

The square root of 74111142 is about 8608.7828407969. The cubic root of 74111142 is about 420.0437256064.

Adding to 74111142 its reverse (24111147), we get a palindrome (98222289).

It can be divided in two parts, 741111 and 42, that added together give a triangular number (741153 = T₁₂₁₇).

The spelling of 74111142 in words is "seventy-four million, one hundred eleven thousand, one hundred forty-two".