202013490 has 64 divisors (see below), whose sum is σ = 559063296. Its totient is φ = 45760512.

The previous prime is 202013489. The next prime is 202013503. The reversal of 202013490 is 94310202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 19474 + ... + 27986.

It is an arithmetic number, because the mean of its divisors is an integer number (8735364).

Almost surely, 2^202013490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202013490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279531648).

202013490 is an abundant number, since it is smaller than the sum of its proper divisors (357049806).

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

202013490 is a wasteful number, since it uses less digits than its factorization.

202013490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 202013490 is about 14213.1449721728. The cubic root of 202013490 is about 586.7594919551.

Adding to 202013490 its reverse (94310202), we get a palindrome (296323692).

The spelling of 202013490 in words is "two hundred two million, thirteen thousand, four hundred ninety".