213027690 has 64 divisors (see below), whose sum is σ = 524040192. Its totient is φ = 55406400.

The previous prime is 213027673. The next prime is 213027743. The reversal of 213027690 is 96720312.

213027690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213027690² = 90761593413472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 218905 + ... + 219875.

It is an arithmetic number, because the mean of its divisors is an integer number (8188128).

Almost surely, 2^213027690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213027690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262020096).

213027690 is an abundant number, since it is smaller than the sum of its proper divisors (311012502).

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

213027690 is a wasteful number, since it uses less digits than its factorization.

213027690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 213027690 is about 14595.4681322663. The cubic root of 213027690 is about 597.2351399293.

The spelling of 213027690 in words is "two hundred thirteen million, twenty-seven thousand, six hundred ninety".