42203437 has 2 divisors, whose sum is σ = 42203438. Its totient is φ = 42203436.

The previous prime is 42203429. The next prime is 42203449. The reversal of 42203437 is 73430224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40883236 + 1320201 = 6394^2 + 1149^2 .

It is a cyclic number.

It is not a de Polignac number, because 42203437 - 2³ = 42203429 is a prime.

It is a super-2 number, since 2×42203437² = 3562260189225938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42203407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101718 + 21101719.

It is an arithmetic number, because the mean of its divisors is an integer number (21101719).

Almost surely, 2^42203437 is an apocalyptic number.

It is an amenable number.

42203437 is a deficient number, since it is larger than the sum of its proper divisors (1).

42203437 is an equidigital number, since it uses as much as digits as its factorization.

42203437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 42203437 is about 6496.4172433735. The cubic root of 42203437 is about 348.1629928548.

The spelling of 42203437 in words is "forty-two million, two hundred three thousand, four hundred thirty-seven".