11297730 has 32 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 3001472.

The previous prime is 11297683. The next prime is 11297743. The reversal of 11297730 is 3779211.

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

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 15 ways as a sum of consecutive naturals, for example, 10246 + ... + 11294.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^11297730 is an apocalyptic number.

11297730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11297730 is an abundant number, since it is smaller than the sum of its proper divisors (15918270).

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

11297730 is a wasteful number, since it uses less digits than its factorization.

11297730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 11297730 is about 3361.2096036992. The cubic root of 11297730 is about 224.3866753442.

The spelling of 11297730 in words is "eleven million, two hundred ninety-seven thousand, seven hundred thirty".