2290071 has 16 divisors (see below), whose sum is σ = 3515904. Its totient is φ = 1298784.

The previous prime is 2290069. The next prime is 2290081. The reversal of 2290071 is 1700922.

It is a happy number.

It is not a de Polignac number, because 2290071 - 2¹ = 2290069 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290021) 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, 3181 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (219744).

2^2290071 is an apocalyptic number.

2290071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2290071 is a deficient number, since it is larger than the sum of its proper divisors (1225833).

2290071 is a wasteful number, since it uses less digits than its factorization.

2290071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 2290071 is about 1513.2980539206. The cubic root of 2290071 is about 131.8103912234.

Adding to 2290071 its reverse (1700922), we get a palindrome (3990993).

The spelling of 2290071 in words is "two million, two hundred ninety thousand, seventy-one".