290001390 has 32 divisors (see below), whose sum is σ = 795432960. Its totient is φ = 66285984.

The previous prime is 290001377. The next prime is 290001391. The reversal of 290001390 is 93100092.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 290001390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290001391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690270 + ... + 690689.

It is an arithmetic number, because the mean of its divisors is an integer number (24857280).

Almost surely, 2^290001390 is an apocalyptic number.

290001390 is an abundant number, since it is smaller than the sum of its proper divisors (505431570).

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

290001390 is a wasteful number, since it uses less digits than its factorization.

290001390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380976.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 290001390 is about 17029.4271776828. The cubic root of 290001390 is about 661.9116523363.

The spelling of 290001390 in words is "two hundred ninety million, one thousand, three hundred ninety".