74816020 has 24 divisors (see below), whose sum is σ = 162183168. Its totient is φ = 28960800.

The previous prime is 74816017. The next prime is 74816101. The reversal of 74816020 is 2061847.

It is a super-3 number, since 3×74816020³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 74816020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59716 + ... + 60955.

It is an arithmetic number, because the mean of its divisors is an integer number (6757632).

Almost surely, 2^74816020 is an apocalyptic number.

It is an amenable number.

74816020 is an abundant number, since it is smaller than the sum of its proper divisors (87367148).

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

74816020 is a wasteful number, since it uses less digits than its factorization.

74816020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120711 (or 120709 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 74816020 is about 8649.6254254158. The cubic root of 74816020 is about 421.3712175406.

Adding to 74816020 its reverse (2061847), we get a palindrome (76877867).

It can be divided in two parts, 748 and 16020, that multiplied together give a triangular number (11982960 = T₄₈₉₅).

The spelling of 74816020 in words is "seventy-four million, eight hundred sixteen thousand, twenty".