348009990 has 32 divisors (see below), whose sum is σ = 836031456. Its totient is φ = 92712960.

The previous prime is 348009973. The next prime is 348009997. The reversal of 348009990 is 99900843.

It is a super-2 number, since 2×348009990² = 242221906279600200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348009997) 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, 29560 + ... + 39620.

It is an arithmetic number, because the mean of its divisors is an integer number (26125983).

Almost surely, 2^348009990 is an apocalyptic number.

348009990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

348009990 is an abundant number, since it is smaller than the sum of its proper divisors (488021466).

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

348009990 is a wasteful number, since it uses less digits than its factorization.

348009990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11224.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 348009990 is about 18655.0258643616. The cubic root of 348009990 is about 703.3916962018.

The spelling of 348009990 in words is "three hundred forty-eight million, nine thousand, nine hundred ninety".