348728828 has 24 divisors (see below), whose sum is σ = 721509600. Its totient is φ = 144301248.

The previous prime is 348728819. The next prime is 348728867. The reversal of 348728828 is 828827843.

It is a happy number.

It is a super-2 number, since 2×348728828² = 243223590956507168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213923 + ... + 215546.

It is an arithmetic number, because the mean of its divisors is an integer number (30062900).

Almost surely, 2^348728828 is an apocalyptic number.

It is an amenable number.

348728828 is an abundant number, since it is smaller than the sum of its proper divisors (372780772).

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

348728828 is a wasteful number, since it uses less digits than its factorization.

348728828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429509 (or 429507 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 50.

The square root of 348728828 is about 18674.2825297252. The cubic root of 348728828 is about 703.8756640569.

The spelling of 348728828 in words is "three hundred forty-eight million, seven hundred twenty-eight thousand, eight hundred twenty-eight".