11257420 has 12 divisors (see below), whose sum is σ = 23640624. Its totient is φ = 4502960.

The previous prime is 11257409. The next prime is 11257439. The reversal of 11257420 is 2475211.

It is a happy number.

11257420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11257391 and 11257400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281416 + ... + 281455.

It is an arithmetic number, because the mean of its divisors is an integer number (1970052).

Almost surely, 2^11257420 is an apocalyptic number.

11257420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11257420 is an abundant number, since it is smaller than the sum of its proper divisors (12383204).

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

11257420 is a wasteful number, since it uses less digits than its factorization.

11257420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562880 (or 562878 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 11257420 is about 3355.2078922177. The cubic root of 11257420 is about 224.1194887580.

The spelling of 11257420 in words is "eleven million, two hundred fifty-seven thousand, four hundred twenty".