401502461 has 4 divisors (see below), whose sum is σ = 401644800. Its totient is φ = 401360124.

The previous prime is 401502449. The next prime is 401502469. The reversal of 401502461 is 164205104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401502461 - 2⁶ = 401502397 is a prime.

It is a super-3 number, since 3×401502461³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401502469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66851 + ... + 72608.

It is an arithmetic number, because the mean of its divisors is an integer number (100411200).

Almost surely, 2^401502461 is an apocalyptic number.

It is an amenable number.

401502461 is a deficient number, since it is larger than the sum of its proper divisors (142339).

401502461 is a wasteful number, since it uses less digits than its factorization.

401502461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142338.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 401502461 is about 20037.5263193838. The cubic root of 401502461 is about 737.7276660333.

Adding to 401502461 its reverse (164205104), we get a palindrome (565707565).

The spelling of 401502461 in words is "four hundred one million, five hundred two thousand, four hundred sixty-one".