2021402435 has 16 divisors (see below), whose sum is σ = 2613354240. Its totient is φ = 1492110720.

The previous prime is 2021402431. The next prime is 2021402491. The reversal of 2021402435 is 5342041202.

It is a happy number.

It is not a de Polignac number, because 2021402435 - 2² = 2021402431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021402435.

It is not an unprimeable number, because it can be changed into a prime (2021402431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205070 + ... + 214700.

It is an arithmetic number, because the mean of its divisors is an integer number (163334640).

Almost surely, 2^2021402435 is an apocalyptic number.

2021402435 is a deficient number, since it is larger than the sum of its proper divisors (591951805).

2021402435 is a wasteful number, since it uses less digits than its factorization.

2021402435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2021402435 is about 44960.0092860311. The cubic root of 2021402435 is about 1264.3993430139.

Adding to 2021402435 its reverse (5342041202), we get a palindrome (7363443637).

The spelling of 2021402435 in words is "two billion, twenty-one million, four hundred two thousand, four hundred thirty-five".