40321230 has 64 divisors (see below), whose sum is σ = 102850560. Its totient is φ = 10088064.

The previous prime is 40321219. The next prime is 40321241. The reversal of 40321230 is 3212304.

It is an interprime number because it is at equal distance from previous prime (40321219) and next prime (40321241).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72112 + ... + 72668.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^40321230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40321230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51425280).

40321230 is an abundant number, since it is smaller than the sum of its proper divisors (62529330).

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

40321230 is a wasteful number, since it uses less digits than its factorization.

40321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40321230 is about 6349.8999992126. The cubic root of 40321230 is about 342.9082421358.

Adding to 40321230 its reverse (3212304), we get a palindrome (43533534).

The spelling of 40321230 in words is "forty million, three hundred twenty-one thousand, two hundred thirty".