4030407421 has 4 divisors (see below), whose sum is σ = 4036919200. Its totient is φ = 4023895644.

The previous prime is 4030407401. The next prime is 4030407457. The reversal of 4030407421 is 1247040304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4030407421 - 2⁵ = 4030407389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030407401) 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, 3254961 + ... + 3256198.

It is an arithmetic number, because the mean of its divisors is an integer number (1009229800).

Almost surely, 2^4030407421 is an apocalyptic number.

It is an amenable number.

4030407421 is a deficient number, since it is larger than the sum of its proper divisors (6511779).

4030407421 is an equidigital number, since it uses as much as digits as its factorization.

4030407421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511778.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 4030407421 is about 63485.4898461058. The cubic root of 4030407421 is about 1591.4132999090.

Adding to 4030407421 its reverse (1247040304), we get a palindrome (5277447725).

The spelling of 4030407421 in words is "four billion, thirty million, four hundred seven thousand, four hundred twenty-one".