406461625 has 8 divisors (see below), whose sum is σ = 507264264. Its totient is φ = 325169200.

The previous prime is 406461617. The next prime is 406461637. The reversal of 406461625 is 526164604.

It can be written as a sum of positive squares in 4 ways, for example, as 8219689 + 398241936 = 2867^2 + 19956^2 .

It is not a de Polignac number, because 406461625 - 2³ = 406461617 is a prime.

It is a super-2 number, since 2×406461625² = 330422105195281250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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, 1625722 + ... + 1625971.

It is an arithmetic number, because the mean of its divisors is an integer number (63408033).

Almost surely, 2^406461625 is an apocalyptic number.

It is an amenable number.

406461625 is a deficient number, since it is larger than the sum of its proper divisors (100802639).

406461625 is an equidigital number, since it uses as much as digits as its factorization.

406461625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251708 (or 3251698 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 406461625 is about 20160.8934573843. The cubic root of 406461625 is about 740.7525974915.

The spelling of 406461625 in words is "four hundred six million, four hundred sixty-one thousand, six hundred twenty-five".