390229002 has 40 divisors (see below), whose sum is σ = 882181476. Its totient is φ = 128919168.

The previous prime is 390229001. The next prime is 390229003. The reversal of 390229002 is 200922093.

It is an interprime number because it is at equal distance from previous prime (390229001) and next prime (390229003).

It can be written as a sum of positive squares in 2 ways, for example, as 388838961 + 1390041 = 19719^2 + 1179^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (390229001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7648 + ... + 28964.

Almost surely, 2^390229002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390229002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441090738).

390229002 is an abundant number, since it is smaller than the sum of its proper divisors (491952474).

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

390229002 is a wasteful number, since it uses less digits than its factorization.

390229002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21444 (or 21435 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 390229002 is about 19754.2147907731. The cubic root of 390229002 is about 730.7573312627.

The spelling of 390229002 in words is "three hundred ninety million, two hundred twenty-nine thousand, two".