10021402 has 4 divisors (see below), whose sum is σ = 15032106. Its totient is φ = 5010700.

The previous prime is 10021393. The next prime is 10021411. The reversal of 10021402 is 20412001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10021393) and next prime (10021411).

It can be written as a sum of positive squares in only one way, i.e., 8696601 + 1324801 = 2949^2 + 1151^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505349 + ... + 2505352.

Almost surely, 2^10021402 is an apocalyptic number.

10021402 is a deficient number, since it is larger than the sum of its proper divisors (5010704).

10021402 is an equidigital number, since it uses as much as digits as its factorization.

10021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010703.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 10021402 is about 3165.6598048432. The cubic root of 10021402 is about 215.5970568565.

Adding to 10021402 its reverse (20412001), we get a palindrome (30433403).

The spelling of 10021402 in words is "ten million, twenty-one thousand, four hundred two".