3642096421 has 4 divisors (see below), whose sum is σ = 3645323500. Its totient is φ = 3638869344.

The previous prime is 3642096413. The next prime is 3642096467. The reversal of 3642096421 is 1246902463.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1579665025 + 2062431396 = 39745^2 + 45414^2 .

It is a cyclic number.

It is not a de Polignac number, because 3642096421 - 2³ = 3642096413 is a prime.

It is a super-2 number, since 2×3642096421² = 26529732679722018482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642096401) 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, 1611846 + ... + 1614103.

It is an arithmetic number, because the mean of its divisors is an integer number (911330875).

Almost surely, 2^3642096421 is an apocalyptic number.

It is an amenable number.

3642096421 is a deficient number, since it is larger than the sum of its proper divisors (3227079).

3642096421 is a wasteful number, since it uses less digits than its factorization.

3642096421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227078.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 3642096421 is about 60349.7839349902. The cubic root of 3642096421 is about 1538.5695973418.

Adding to 3642096421 its reverse (1246902463), we get a palindrome (4888998884).

The spelling of 3642096421 in words is "three billion, six hundred forty-two million, ninety-six thousand, four hundred twenty-one".