401813025 has 24 divisors (see below), whose sum is σ = 669418464. Its totient is φ = 212659200.

The previous prime is 401813023. The next prime is 401813053. The reversal of 401813025 is 520318104.

It is not a de Polignac number, because 401813025 - 2¹ = 401813023 is a prime.

It is a super-2 number, since 2×401813025² = 322907414119301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401812986 and 401813004.

It is not an unprimeable number, because it can be changed into a prime (401813023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10624 + ... + 30273.

It is an arithmetic number, because the mean of its divisors is an integer number (27892436).

Almost surely, 2^401813025 is an apocalyptic number.

It is an amenable number.

401813025 is a deficient number, since it is larger than the sum of its proper divisors (267605439).

401813025 is a wasteful number, since it uses less digits than its factorization.

401813025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41041 (or 41036 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 401813025 is about 20045.2743807612. The cubic root of 401813025 is about 737.9178289252.

The spelling of 401813025 in words is "four hundred one million, eight hundred thirteen thousand, twenty-five".