2253690 has 64 divisors (see below), whose sum is σ = 6376320. Its totient is φ = 564480.

The previous prime is 2253683. The next prime is 2253703. The reversal of 2253690 is 963522.

2253690 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 2×2253690² = 10158237232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4345 + ... + 4835.

It is an arithmetic number, because the mean of its divisors is an integer number (99630).

2^2253690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2253690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3188160).

2253690 is an abundant number, since it is smaller than the sum of its proper divisors (4122630).

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

2253690 is a wasteful number, since it uses less digits than its factorization.

2253690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 2253690 is about 1501.2294961131. The cubic root of 2253690 is about 131.1086641845.

The spelling of 2253690 in words is "two million, two hundred fifty-three thousand, six hundred ninety".