1004632421 has 16 divisors (see below), whose sum is σ = 1092268800. Its totient is φ = 918519168.

The previous prime is 1004632411. The next prime is 1004632423. The reversal of 1004632421 is 1242364001.

It is a cyclic number.

It is not a de Polignac number, because 1004632421 - 2²⁶ = 937523557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004632423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778745 + ... + 780033.

It is an arithmetic number, because the mean of its divisors is an integer number (68266800).

Almost surely, 2^1004632421 is an apocalyptic number.

It is an amenable number.

1004632421 is a deficient number, since it is larger than the sum of its proper divisors (87636379).

1004632421 is a wasteful number, since it uses less digits than its factorization.

1004632421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1004632421 is about 31695.9369793669. The cubic root of 1004632421 is about 1001.5417620814.

Adding to 1004632421 its reverse (1242364001), we get a palindrome (2246996422).

The spelling of 1004632421 in words is "one billion, four million, six hundred thirty-two thousand, four hundred twenty-one".