348256440 has 96 divisors (see below), whose sum is σ = 1293533280. Its totient is φ = 79600896.

The previous prime is 348256427. The next prime is 348256451. The reversal of 348256440 is 44652843.

348256440 is a `hidden beast` number, since 3 + 4 + 8 + 2 + 5 + 644 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 348256395 and 348256404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66579 + ... + 71618.

It is an arithmetic number, because the mean of its divisors is an integer number (13474305).

Almost surely, 2^348256440 is an apocalyptic number.

348256440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

348256440 is an abundant number, since it is smaller than the sum of its proper divisors (945276840).

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

348256440 is a wasteful number, since it uses less digits than its factorization.

348256440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138221 (or 138214 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 348256440 is about 18661.6301538746. The cubic root of 348256440 is about 703.5576971635.

The spelling of 348256440 in words is "three hundred forty-eight million, two hundred fifty-six thousand, four hundred forty".