10251420 has 24 divisors (see below), whose sum is σ = 28704144. Its totient is φ = 2733696.

The previous prime is 10251407. The next prime is 10251433. The reversal of 10251420 is 2415201.

10251420 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 an interprime number because it is at equal distance from previous prime (10251407) and next prime (10251433).

It is a super-2 number, since 2×10251420² = 210183224032800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10251420.

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, 85369 + ... + 85488.

It is an arithmetic number, because the mean of its divisors is an integer number (1196006).

Almost surely, 2^10251420 is an apocalyptic number.

10251420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10251420 is an abundant number, since it is smaller than the sum of its proper divisors (18452724).

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

10251420 is a wasteful number, since it uses less digits than its factorization.

10251420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170869 (or 170867 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10251420 is about 3201.7838777781. The cubic root of 10251420 is about 217.2341049857.

Adding to 10251420 its reverse (2415201), we get a palindrome (12666621).

The spelling of 10251420 in words is "ten million, two hundred fifty-one thousand, four hundred twenty".