400246125 has 32 divisors (see below), whose sum is σ = 680209920. Its totient is φ = 208913600.

The previous prime is 400246123. The next prime is 400246127. The reversal of 400246125 is 521642004.

It is an interprime number because it is at equal distance from previous prime (400246123) and next prime (400246127).

It is not a de Polignac number, because 400246125 - 2¹ = 400246123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400246095 and 400246104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400246123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6271 + ... + 28979.

It is an arithmetic number, because the mean of its divisors is an integer number (21256560).

Almost surely, 2^400246125 is an apocalyptic number.

It is an amenable number.

400246125 is a deficient number, since it is larger than the sum of its proper divisors (279963795).

400246125 is a wasteful number, since it uses less digits than its factorization.

400246125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22774 (or 22764 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 400246125 is about 20006.1521787674. The cubic root of 400246125 is about 736.9573907850.

Adding to 400246125 its reverse (521642004), we get a palindrome (921888129).

The spelling of 400246125 in words is "four hundred million, two hundred forty-six thousand, one hundred twenty-five".