1002476421 has 6 divisors (see below), whose sum is σ = 1448021510. Its totient is φ = 668317608.

The previous prime is 1002476411. The next prime is 1002476429. The reversal of 1002476421 is 1246742001.

1002476421 is a `hidden beast` number, since 10 + 0 + 2 + 4 + 7 + 642 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 563112900 + 439363521 = 23730^2 + 20961^2 .

It is not a de Polignac number, because 1002476421 - 2²⁷ = 868258693 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 (1002476429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55693126 + ... + 55693143.

Almost surely, 2^1002476421 is an apocalyptic number.

It is an amenable number.

1002476421 is a deficient number, since it is larger than the sum of its proper divisors (445545089).

1002476421 is a wasteful number, since it uses less digits than its factorization.

1002476421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111386275 (or 111386272 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1002476421 is about 31661.9080442098. The cubic root of 1002476421 is about 1000.8247931958.

The spelling of 1002476421 in words is "one billion, two million, four hundred seventy-six thousand, four hundred twenty-one".