1032402421 has 2 divisors, whose sum is σ = 1032402422. Its totient is φ = 1032402420.

The previous prime is 1032402383. The next prime is 1032402433. The reversal of 1032402421 is 1242042301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1026497521 + 5904900 = 32039^2 + 2430^2 .

It is an emirp because it is prime and its reverse (1242042301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032402421 is a prime.

It is a super-2 number, since 2×1032402421² = 2131709517773322482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1032402821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516201210 + 516201211.

It is an arithmetic number, because the mean of its divisors is an integer number (516201211).

Almost surely, 2^1032402421 is an apocalyptic number.

It is an amenable number.

1032402421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1032402421 is an equidigital number, since it uses as much as digits as its factorization.

1032402421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1032402421 is about 32131.0196072269. The cubic root of 1032402421 is about 1010.6862052471.

Adding to 1032402421 its reverse (1242042301), we get a palindrome (2274444722).

The spelling of 1032402421 in words is "one billion, thirty-two million, four hundred two thousand, four hundred twenty-one".