401252464 has 20 divisors (see below), whose sum is σ = 780858504. Its totient is φ = 199740608.

The previous prime is 401252443. The next prime is 401252483. The reversal of 401252464 is 464252104.

401252464 = 402² + 403² + ... + 1082².

It is a super-2 number, since 2×401252464² = 322007079732142592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51607 + ... + 58870.

Almost surely, 2^401252464 is an apocalyptic number.

It is an amenable number.

401252464 is a deficient number, since it is larger than the sum of its proper divisors (379606040).

401252464 is a wasteful number, since it uses less digits than its factorization.

401252464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110712 (or 110706 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 401252464 is about 20031.2871278907. The cubic root of 401252464 is about 737.5745179515.

The spelling of 401252464 in words is "four hundred one million, two hundred fifty-two thousand, four hundred sixty-four".