74798020 has 24 divisors (see below), whose sum is σ = 171355968. Its totient is φ = 27199200.

The previous prime is 74797997. The next prime is 74798021. The reversal of 74798020 is 2089747.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74798021) 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, 169776 + ... + 170215.

It is an arithmetic number, because the mean of its divisors is an integer number (7139832).

Almost surely, 2^74798020 is an apocalyptic number.

It is an amenable number.

74798020 is an abundant number, since it is smaller than the sum of its proper divisors (96557948).

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

74798020 is a wasteful number, since it uses less digits than its factorization.

74798020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340011 (or 340009 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 74798020 is about 8648.5848553391. The cubic root of 74798020 is about 421.3374222373.

The spelling of 74798020 in words is "seventy-four million, seven hundred ninety-eight thousand, twenty".