213763290 has 64 divisors (see below), whose sum is σ = 570350592. Its totient is φ = 50918400.

The previous prime is 213763289. The next prime is 213763307. The reversal of 213763290 is 92367312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3250 + ... + 20930.

It is an arithmetic number, because the mean of its divisors is an integer number (8911728).

Almost surely, 2^213763290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213763290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285175296).

213763290 is an abundant number, since it is smaller than the sum of its proper divisors (356587302).

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

213763290 is a wasteful number, since it uses less digits than its factorization.

213763290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 213763290 is about 14620.6460185588. The cubic root of 213763290 is about 597.9217822179.

The spelling of 213763290 in words is "two hundred thirteen million, seven hundred sixty-three thousand, two hundred ninety".