348738840 has 96 divisors (see below), whose sum is σ = 1170000000. Its totient is φ = 89994240.

The previous prime is 348738827. The next prime is 348738847. The reversal of 348738840 is 48837843.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348738847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4465 + ... + 26784.

It is an arithmetic number, because the mean of its divisors is an integer number (12187500).

Almost surely, 2^348738840 is an apocalyptic number.

348738840 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 348738840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585000000).

348738840 is an abundant number, since it is smaller than the sum of its proper divisors (821261160).

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

348738840 is a wasteful number, since it uses less digits than its factorization.

348738840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31297 (or 31290 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 348738840 is about 18674.5505970023. The cubic root of 348738840 is about 703.8824000794.

The spelling of 348738840 in words is "three hundred forty-eight million, seven hundred thirty-eight thousand, eight hundred forty".