401662225 has 12 divisors (see below), whose sum is σ = 519716736. Its totient is φ = 307358480.

The previous prime is 401662201. The next prime is 401662241. The reversal of 401662225 is 522266104.

It is not a de Polignac number, because 401662225 - 2⁵ = 401662193 is a prime.

It is a super-2 number, since 2×401662225² = 322665085983901250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401662193 and 401662202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348697 + ... + 349846.

It is an arithmetic number, because the mean of its divisors is an integer number (43309728).

Almost surely, 2^401662225 is an apocalyptic number.

It is an amenable number.

401662225 is a deficient number, since it is larger than the sum of its proper divisors (118054511).

401662225 is a wasteful number, since it uses less digits than its factorization.

401662225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698576 (or 698571 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 401662225 is about 20041.5125427199. The cubic root of 401662225 is about 737.8255041162.

The spelling of 401662225 in words is "four hundred one million, six hundred sixty-two thousand, two hundred twenty-five".