74372542 has 16 divisors (see below), whose sum is σ = 116032752. Its totient is φ = 35723520.

The previous prime is 74372539. The next prime is 74372567. The reversal of 74372542 is 24527347.

It is a junction number, because it is equal to n+sod(n) for n = 74372498 and 74372507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 12334.

It is an arithmetic number, because the mean of its divisors is an integer number (7252047).

Almost surely, 2^74372542 is an apocalyptic number.

74372542 is a deficient number, since it is larger than the sum of its proper divisors (41660210).

74372542 is a wasteful number, since it uses less digits than its factorization.

74372542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14283.

The product of its digits is 47040, while the sum is 34.

The square root of 74372542 is about 8623.9516464322. The cubic root of 74372542 is about 420.5369964192.

Adding to 74372542 its reverse (24527347), we get a palindrome (98899889).

The spelling of 74372542 in words is "seventy-four million, three hundred seventy-two thousand, five hundred forty-two".