423193140 has 48 divisors (see below), whose sum is σ = 1316602560. Its totient is φ = 112851360.

The previous prime is 423193139. The next prime is 423193153. The reversal of 423193140 is 41391324.

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

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391306 + ... + 392385.

It is an arithmetic number, because the mean of its divisors is an integer number (27429220).

Almost surely, 2^423193140 is an apocalyptic number.

It is an amenable number.

423193140 is an abundant number, since it is smaller than the sum of its proper divisors (893409420).

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

423193140 is a wasteful number, since it uses less digits than its factorization.

423193140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783709 (or 783701 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 423193140 is about 20571.6586594275. The cubic root of 423193140 is about 750.7803078779.

The spelling of 423193140 in words is "four hundred twenty-three million, one hundred ninety-three thousand, one hundred forty".