346473940 has 48 divisors (see below), whose sum is σ = 777546000. Its totient is φ = 129226752.

The previous prime is 346473931. The next prime is 346473973. The reversal of 346473940 is 49374643.

It can be written as a sum of positive squares in 8 ways, for example, as 48497296 + 297976644 = 6964^2 + 17262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 346473893 and 346473902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32386 + ... + 41734.

It is an arithmetic number, because the mean of its divisors is an integer number (16198875).

Almost surely, 2^346473940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 346473940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388773000).

346473940 is an abundant number, since it is smaller than the sum of its proper divisors (431072060).

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

346473940 is a wasteful number, since it uses less digits than its factorization.

346473940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484 (or 9482 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 346473940 is about 18613.8104642762. The cubic root of 346473940 is about 702.3552907522.

The spelling of 346473940 in words is "three hundred forty-six million, four hundred seventy-three thousand, nine hundred forty".