401425252 has 6 divisors (see below), whose sum is σ = 702494198. Its totient is φ = 200712624.

The previous prime is 401425243. The next prime is 401425289. The reversal of 401425252 is 252524104.

It can be written as a sum of positive squares in only one way, i.e., 400640256 + 784996 = 20016^2 + 886^2 .

It is a super-2 number, since 2×401425252² = 322284465886527008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50178153 + ... + 50178160.

Almost surely, 2^401425252 is an apocalyptic number.

It is an amenable number.

401425252 is a deficient number, since it is larger than the sum of its proper divisors (301068946).

401425252 is a wasteful number, since it uses less digits than its factorization.

401425252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100356317 (or 100356315 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 401425252 is about 20035.5996166823. The cubic root of 401425252 is about 737.6803746114.

Adding to 401425252 its reverse (252524104), we get a palindrome (653949356).

The spelling of 401425252 in words is "four hundred one million, four hundred twenty-five thousand, two hundred fifty-two".