74006742 has 16 divisors (see below), whose sum is σ = 148566960. Its totient is φ = 24576672.

The previous prime is 74006731. The next prime is 74006783. The reversal of 74006742 is 24760047.

It is a super-2 number, since 2×74006742² = 10953995722909128, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 21313 + ... + 24540.

It is an arithmetic number, because the mean of its divisors is an integer number (9285435).

Almost surely, 2^74006742 is an apocalyptic number.

74006742 is an abundant number, since it is smaller than the sum of its proper divisors (74560218).

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

74006742 is a wasteful number, since it uses less digits than its factorization.

74006742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46127.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 74006742 is about 8602.7171289076. The cubic root of 74006742 is about 419.8463950767.

Adding to 74006742 its reverse (24760047), we get a palindrome (98766789).

The spelling of 74006742 in words is "seventy-four million, six thousand, seven hundred forty-two".