10257420 has 24 divisors (see below), whose sum is σ = 28720944. Its totient is φ = 2735296.

The previous prime is 10257407. The next prime is 10257437. The reversal of 10257420 is 2475201.

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, 85419 + ... + 85538.

It is an arithmetic number, because the mean of its divisors is an integer number (1196706).

Almost surely, 2^10257420 is an apocalyptic number.

10257420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10257420 is an abundant number, since it is smaller than the sum of its proper divisors (18463524).

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

10257420 is a wasteful number, since it uses less digits than its factorization.

10257420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170969 (or 170967 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 10257420 is about 3202.7207183893. The cubic root of 10257420 is about 217.2764779911.

The spelling of 10257420 in words is "ten million, two hundred fifty-seven thousand, four hundred twenty".