372336421 has 2 divisors, whose sum is σ = 372336422. Its totient is φ = 372336420.

The previous prime is 372336383. The next prime is 372336449. The reversal of 372336421 is 124633273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298805796 + 73530625 = 17286^2 + 8575^2 .

It is a cyclic number.

It is not a de Polignac number, because 372336421 - 2²¹ = 370239269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (372336221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186168210 + 186168211.

It is an arithmetic number, because the mean of its divisors is an integer number (186168211).

Almost surely, 2^372336421 is an apocalyptic number.

It is an amenable number.

372336421 is a deficient number, since it is larger than the sum of its proper divisors (1).

372336421 is an equidigital number, since it uses as much as digits as its factorization.

372336421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 31.

The square root of 372336421 is about 19296.0208592342. The cubic root of 372336421 is about 719.4133731216.

Adding to 372336421 its reverse (124633273), we get a palindrome (496969694).

The spelling of 372336421 in words is "three hundred seventy-two million, three hundred thirty-six thousand, four hundred twenty-one".