423400044 has 12 divisors (see below), whose sum is σ = 987933464. Its totient is φ = 141133344.

The previous prime is 423400037. The next prime is 423400057. The reversal of 423400044 is 440004324.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17641657 + ... + 17641680.

Almost surely, 2^423400044 is an apocalyptic number.

It is an amenable number.

423400044 is an abundant number, since it is smaller than the sum of its proper divisors (564533420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423400044 is a wasteful number, since it uses less digits than its factorization.

423400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35283344 (or 35283342 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 423400044 is about 20576.6869053305. The cubic root of 423400044 is about 750.9026429895.

Adding to 423400044 its reverse (440004324), we get a palindrome (863404368).

The spelling of 423400044 in words is "four hundred twenty-three million, four hundred thousand, forty-four".