1004021474 has 4 divisors (see below), whose sum is σ = 1506032214. Its totient is φ = 502010736.

The previous prime is 1004021471. The next prime is 1004021527. The reversal of 1004021474 is 4741204001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4741204001 = 17 ⋅278894353.

It can be written as a sum of positive squares in only one way, i.e., 730350625 + 273670849 = 27025^2 + 16543^2 .

It is not an unprimeable number, because it can be changed into a prime (1004021471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251005367 + ... + 251005370.

Almost surely, 2^1004021474 is an apocalyptic number.

1004021474 is a deficient number, since it is larger than the sum of its proper divisors (502010740).

1004021474 is an equidigital number, since it uses as much as digits as its factorization.

1004021474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502010739.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1004021474 is about 31686.2978904131. The cubic root of 1004021474 is about 1001.3386984202.

Adding to 1004021474 its reverse (4741204001), we get a palindrome (5745225475).

The spelling of 1004021474 in words is "one billion, four million, twenty-one thousand, four hundred seventy-four".