348972690 has 32 divisors (see below), whose sum is σ = 913674816. Its totient is φ = 84599360.

The previous prime is 348972671. The next prime is 348972691. The reversal of 348972690 is 96279843.

It is a super-2 number, since 2×348972690² = 243563876731672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (348972691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528417 + ... + 529076.

It is an arithmetic number, because the mean of its divisors is an integer number (28552338).

Almost surely, 2^348972690 is an apocalyptic number.

348972690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

348972690 is an abundant number, since it is smaller than the sum of its proper divisors (564702126).

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

348972690 is a wasteful number, since it uses less digits than its factorization.

348972690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057514.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 348972690 is about 18680.8107425775. The cubic root of 348972690 is about 704.0396965069.

The spelling of 348972690 in words is "three hundred forty-eight million, nine hundred seventy-two thousand, six hundred ninety".