11649390 has 16 divisors (see below), whose sum is σ = 27958608. Its totient is φ = 3106496.

The previous prime is 11649389. The next prime is 11649401. The reversal of 11649390 is 9394611.

11649390 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194127 + ... + 194186.

It is an arithmetic number, because the mean of its divisors is an integer number (1747413).

Almost surely, 2^11649390 is an apocalyptic number.

11649390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11649390 is an abundant number, since it is smaller than the sum of its proper divisors (16309218).

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

11649390 is a wasteful number, since it uses less digits than its factorization.

11649390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388323.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 11649390 is about 3413.1202732983. The cubic root of 11649390 is about 226.6910609078.

The spelling of 11649390 in words is "eleven million, six hundred forty-nine thousand, three hundred ninety".