348897780 has 240 divisors, whose sum is σ = 1365065856. Its totient is φ = 72472320.

The previous prime is 348897761. The next prime is 348897797. The reversal of 348897780 is 87798843.

348897780 is a `hidden beast` number, since 3 + 488 + 97 + 78 + 0 = 666.

348897780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 123342 + ... + 126138.

Almost surely, 2^348897780 is an apocalyptic number.

348897780 is a gapful number since it is divisible by the number (30) 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 348897780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682532928).

348897780 is an abundant number, since it is smaller than the sum of its proper divisors (1016168076).

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

348897780 is a wasteful number, since it uses less digits than its factorization.

348897780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 348897780 is about 18678.8056363355. The cubic root of 348897780 is about 703.9893168360.

The spelling of 348897780 in words is "three hundred forty-eight million, eight hundred ninety-seven thousand, seven hundred eighty".