74025820 has 48 divisors (see below), whose sum is σ = 179571168. Its totient is φ = 25333760.

The previous prime is 74025817. The next prime is 74025823. The reversal of 74025820 is 2852047.

It is an interprime number because it is at equal distance from previous prime (74025817) and next prime (74025823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74025823) 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 15 ways as a sum of consecutive naturals, for example, 6157 + ... + 13636.

It is an arithmetic number, because the mean of its divisors is an integer number (3741066).

Almost surely, 2^74025820 is an apocalyptic number.

It is an amenable number.

74025820 is an abundant number, since it is smaller than the sum of its proper divisors (105545348).

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

74025820 is a wasteful number, since it uses less digits than its factorization.

74025820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19830 (or 19828 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 74025820 is about 8603.8258931710. The cubic root of 74025820 is about 419.8824690033.

Adding to 74025820 its reverse (2852047), we get a palindrome (76877867).

The spelling of 74025820 in words is "seventy-four million, twenty-five thousand, eight hundred twenty".