32400342 has 36 divisors (see below), whose sum is σ = 76023324. Its totient is φ = 9968400.

The previous prime is 32400341. The next prime is 32400397. The reversal of 32400342 is 24300423.

32400342 is a `hidden beast` number, since 324 + 0 + 0 + 342 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32400341) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2284 + ... + 8367.

It is an arithmetic number, because the mean of its divisors is an integer number (2111759).

Almost surely, 2^32400342 is an apocalyptic number.

32400342 is an abundant number, since it is smaller than the sum of its proper divisors (43622982).

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

32400342 is a wasteful number, since it uses less digits than its factorization.

32400342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685 (or 10669 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 32400342 is about 5692.1298298616. The cubic root of 32400342 is about 318.7986924460.

Adding to 32400342 its reverse (24300423), we get a palindrome (56700765).

The spelling of 32400342 in words is "thirty-two million, four hundred thousand, three hundred forty-two".