423812490 has 128 divisors (see below), whose sum is σ = 1107800064. Its totient is φ = 103488000.

The previous prime is 423812443. The next prime is 423812491. The reversal of 423812490 is 94218324.

It is not an unprimeable number, because it can be changed into a prime (423812491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2008485 + ... + 2008695.

It is an arithmetic number, because the mean of its divisors is an integer number (8654688).

Almost surely, 2^423812490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423812490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553900032).

423812490 is an abundant number, since it is smaller than the sum of its proper divisors (683987574).

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

423812490 is a wasteful number, since it uses less digits than its factorization.

423812490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 423812490 is about 20586.7066331650. The cubic root of 423812490 is about 751.1463890523.

The spelling of 423812490 in words is "four hundred twenty-three million, eight hundred twelve thousand, four hundred ninety".