346320040 has 32 divisors (see below), whose sum is σ = 850059360. Its totient is φ = 125934400.

The previous prime is 346320031. The next prime is 346320047. The reversal of 346320040 is 40023643.

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

It is a junction number, because it is equal to n+sod(n) for n = 346319993 and 346320020.

It is not an unprimeable number, because it can be changed into a prime (346320047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393106 + ... + 393985.

It is an arithmetic number, because the mean of its divisors is an integer number (26564355).

Almost surely, 2^346320040 is an apocalyptic number.

It is an amenable number.

346320040 is an abundant number, since it is smaller than the sum of its proper divisors (503739320).

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

346320040 is a wasteful number, since it uses less digits than its factorization.

346320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787113 (or 787109 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 346320040 is about 18609.6759778348. The cubic root of 346320040 is about 702.2512824607.

Adding to 346320040 its reverse (40023643), we get a palindrome (386343683).

The spelling of 346320040 in words is "three hundred forty-six million, three hundred twenty thousand, forty".