74201420 has 24 divisors (see below), whose sum is σ = 155985648. Its totient is φ = 29649600.

The previous prime is 74201417. The next prime is 74201443. The reversal of 74201420 is 2410247.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 74201392 and 74201401.

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, 33755 + ... + 35885.

It is an arithmetic number, because the mean of its divisors is an integer number (6499402).

Almost surely, 2^74201420 is an apocalyptic number.

It is an amenable number.

74201420 is an abundant number, since it is smaller than the sum of its proper divisors (81784228).

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

74201420 is a wasteful number, since it uses less digits than its factorization.

74201420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881 (or 3879 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 74201420 is about 8614.0246110631. The cubic root of 74201420 is about 420.2142142321.

Adding to 74201420 its reverse (2410247), we get a palindrome (76611667).

The spelling of 74201420 in words is "seventy-four million, two hundred one thousand, four hundred twenty".