348421990 has 32 divisors (see below), whose sum is σ = 719437824. Its totient is φ = 119011680.

The previous prime is 348421973. The next prime is 348421999. The reversal of 348421990 is 99124843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348421999) 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, 9787 + ... + 28153.

It is an arithmetic number, because the mean of its divisors is an integer number (22482432).

Almost surely, 2^348421990 is an apocalyptic number.

348421990 is an abundant number, since it is smaller than the sum of its proper divisors (371015834).

348421990 is a wasteful number, since it uses less digits than its factorization.

348421990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18652.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 348421990 is about 18666.0651986432. The cubic root of 348421990 is about 703.6691624635.

The spelling of 348421990 in words is "three hundred forty-eight million, four hundred twenty-one thousand, nine hundred ninety".