4040521403 has 2 divisors, whose sum is σ = 4040521404. Its totient is φ = 4040521402.

The previous prime is 4040521379. The next prime is 4040521421. The reversal of 4040521403 is 3041250404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4040521403 - 2⁶ = 4040521339 is a prime.

It is not a weakly prime, because it can be changed into another prime (4040521453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020260701 + 2020260702.

It is an arithmetic number, because the mean of its divisors is an integer number (2020260702).

Almost surely, 2^4040521403 is an apocalyptic number.

4040521403 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040521403 is an equidigital number, since it uses as much as digits as its factorization.

4040521403 is an evil number, because the sum of its binary digits is even.

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

The square root of 4040521403 is about 63565.0957916371. The cubic root of 4040521403 is about 1592.7433623613.

Adding to 4040521403 its reverse (3041250404), we get a palindrome (7081771807).

It can be divided in two parts, 404052 and 1403, that multiplied together give a triangular number (566884956 = T₃₃₆₇₁).

The spelling of 4040521403 in words is "four billion, forty million, five hundred twenty-one thousand, four hundred three".