1020041402 has 8 divisors (see below), whose sum is σ = 1544099700. Its totient is φ = 505341504.

The previous prime is 1020041401. The next prime is 1020041441. The reversal of 1020041402 is 2041400201.

It can be written as a sum of positive squares in 2 ways, for example, as 1015760641 + 4280761 = 31871^2 + 2069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1020041401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339327 + ... + 2339762.

Almost surely, 2^1020041402 is an apocalyptic number.

1020041402 is a deficient number, since it is larger than the sum of its proper divisors (524058298).

1020041402 is a wasteful number, since it uses less digits than its factorization.

1020041402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679200.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1020041402 is about 31938.0870122179. The cubic root of 1020041402 is about 1006.6363290469.

Adding to 1020041402 its reverse (2041400201), we get a palindrome (3061441603).

The spelling of 1020041402 in words is "one billion, twenty million, forty-one thousand, four hundred two".