423511740 has 60 divisors (see below), whose sum is σ = 1328577096. Its totient is φ = 112936032.

The previous prime is 423511723. The next prime is 423511787. The reversal of 423511740 is 47115324.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129094 + ... + 132333.

Almost surely, 2^423511740 is an apocalyptic number.

It is an amenable number.

423511740 is an abundant number, since it is smaller than the sum of its proper divisors (905065356).

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

423511740 is a wasteful number, since it uses less digits than its factorization.

423511740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261448 (or 261437 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 423511740 is about 20579.4008659144. The cubic root of 423511740 is about 750.9686683702.

The spelling of 423511740 in words is "four hundred twenty-three million, five hundred eleven thousand, seven hundred forty".