74103890 has 16 divisors (see below), whose sum is σ = 152442432. Its totient is φ = 25407024.

The previous prime is 74103889. The next prime is 74103893. The reversal of 74103890 is 9830147.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74103893) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 529244 + ... + 529383.

It is an arithmetic number, because the mean of its divisors is an integer number (9527652).

Almost surely, 2^74103890 is an apocalyptic number.

74103890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74103890 is an abundant number, since it is smaller than the sum of its proper divisors (78338542).

74103890 is a wasteful number, since it uses less digits than its factorization.

74103890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058641.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 74103890 is about 8608.3616327383. The cubic root of 74103890 is about 420.0300243086.

The spelling of 74103890 in words is "seventy-four million, one hundred three thousand, eight hundred ninety".