423401738 has 12 divisors (see below), whose sum is σ = 670289490. Its totient is φ = 200558376.

The previous prime is 423401731. The next prime is 423401749. The reversal of 423401738 is 837104324.

It can be written as a sum of positive squares in only one way, i.e., 370447009 + 52954729 = 19247^2 + 7277^2 .

It is not an unprimeable number, because it can be changed into a prime (423401731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292493 + ... + 293936.

Almost surely, 2^423401738 is an apocalyptic number.

423401738 is a deficient number, since it is larger than the sum of its proper divisors (246887752).

423401738 is a wasteful number, since it uses less digits than its factorization.

423401738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586469 (or 586450 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 423401738 is about 20576.7280683786. The cubic root of 423401738 is about 750.9036444280.

The spelling of 423401738 in words is "four hundred twenty-three million, four hundred one thousand, seven hundred thirty-eight".