402342160 has 80 divisors (see below), whose sum is σ = 1025291520. Its totient is φ = 145617920.

The previous prime is 402342139. The next prime is 402342163. The reversal of 402342160 is 61243204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (402342163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209364 + ... + 211276.

It is an arithmetic number, because the mean of its divisors is an integer number (12816144).

Almost surely, 2^402342160 is an apocalyptic number.

402342160 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 402342160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512645760).

402342160 is an abundant number, since it is smaller than the sum of its proper divisors (622949360).

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

402342160 is a wasteful number, since it uses less digits than its factorization.

402342160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 402342160 is about 20058.4685357582. The cubic root of 402342160 is about 738.2416004785.

Adding to 402342160 its reverse (61243204), we get a palindrome (463585364).

The spelling of 402342160 in words is "four hundred two million, three hundred forty-two thousand, one hundred sixty".