74111620 has 24 divisors (see below), whose sum is σ = 169783488. Its totient is φ = 26949600.

The previous prime is 74111599. The next prime is 74111633. The reversal of 74111620 is 2611147.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 74111591 and 74111600.

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, 168216 + ... + 168655.

It is an arithmetic number, because the mean of its divisors is an integer number (7074312).

Almost surely, 2^74111620 is an apocalyptic number.

It is an amenable number.

74111620 is an abundant number, since it is smaller than the sum of its proper divisors (95671868).

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

74111620 is a wasteful number, since it uses less digits than its factorization.

74111620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336891 (or 336889 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 74111620 is about 8608.8106030973. The cubic root of 74111620 is about 420.0446286666.

Adding to 74111620 its reverse (2611147), we get a palindrome (76722767).

The spelling of 74111620 in words is "seventy-four million, one hundred eleven thousand, six hundred twenty".