814990 has 32 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 285600.

The previous prime is 814949. The next prime is 814991. The reversal of 814990 is 99418.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3291 + ... + 3529.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2⁸¹⁴⁹⁹⁰ is an apocalyptic number.

814990 is an abundant number, since it is smaller than the sum of its proper divisors (843890).

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

814990 is a wasteful number, since it uses less digits than its factorization.

814990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 814990 is about 902.7679657586. The cubic root of 814990 is about 93.4080043028.

The spelling of 814990 in words is "eight hundred fourteen thousand, nine hundred ninety".