423135090 has 160 divisors (see below), whose sum is σ = 1327708800. Its totient is φ = 96653088.

The previous prime is 423135077. The next prime is 423135107. The reversal of 423135090 is 90531324.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 277069 + ... + 278591.

It is an arithmetic number, because the mean of its divisors is an integer number (8298180).

Almost surely, 2^423135090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423135090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663854400).

423135090 is an abundant number, since it is smaller than the sum of its proper divisors (904573710).

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

423135090 is a wasteful number, since it uses less digits than its factorization.

423135090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 423135090 is about 20570.2476893206. The cubic root of 423135090 is about 750.7459777769.

The spelling of 423135090 in words is "four hundred twenty-three million, one hundred thirty-five thousand, ninety".