10421004 has 36 divisors (see below), whose sum is σ = 26730872. Its totient is φ = 3157440.

The previous prime is 10421003. The next prime is 10421009. The reversal of 10421004 is 40012401.

10421004 = T₄₄₂ + T₄₄₃ + ... + T₅₂₉.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (10421003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2137 + ... + 5040.

Almost surely, 2^10421004 is an apocalyptic number.

It is an amenable number.

10421004 is an abundant number, since it is smaller than the sum of its proper divisors (16309868).

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

10421004 is a wasteful number, since it uses less digits than its factorization.

10421004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206 (or 7193 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 10421004 is about 3228.1579886988. The cubic root of 10421004 is about 218.4254240552.

Adding to 10421004 its reverse (40012401), we get a palindrome (50433405).

The spelling of 10421004 in words is "ten million, four hundred twenty-one thousand, four".