402234120 has 128 divisors (see below), whose sum is σ = 1399161600. Its totient is φ = 102592512.

The previous prime is 402233981. The next prime is 402234121. The reversal of 402234120 is 21432204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 402234093 and 402234102.

It is not an unprimeable number, because it can be changed into a prime (402234121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16744 + ... + 32936.

It is an arithmetic number, because the mean of its divisors is an integer number (10930950).

Almost surely, 2^402234120 is an apocalyptic number.

402234120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402234120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699580800).

402234120 is an abundant number, since it is smaller than the sum of its proper divisors (996927480).

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

402234120 is a wasteful number, since it uses less digits than its factorization.

402234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16236 (or 16226 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402234120 is about 20055.7752280983. The cubic root of 402234120 is about 738.1755151323.

Adding to 402234120 its reverse (21432204), we get a palindrome (423666324).

The spelling of 402234120 in words is "four hundred two million, two hundred thirty-four thousand, one hundred twenty".