4021203402 has 24 divisors (see below), whose sum is σ = 8722807236. Its totient is φ = 1338831936.

The previous prime is 4021203397. The next prime is 4021203451. The reversal of 4021203402 is 2043021204.

4021203402 is a `hidden beast` number, since 40 + 21 + 203 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3431733561 + 589469841 = 58581^2 + 24279^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114913 + ... + 145764.

Almost surely, 2^4021203402 is an apocalyptic number.

4021203402 is an abundant number, since it is smaller than the sum of its proper divisors (4701603834).

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

4021203402 is a wasteful number, since it uses less digits than its factorization.

4021203402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261542 (or 261539 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4021203402 is about 63412.9592591294. The cubic root of 4021203402 is about 1590.2009690200.

Adding to 4021203402 its reverse (2043021204), we get a palindrome (6064224606).

The spelling of 4021203402 in words is "four billion, twenty-one million, two hundred three thousand, four hundred two".