331900461 has 6 divisors (see below), whose sum is σ = 479411790. Its totient is φ = 221266968.

The previous prime is 331900399. The next prime is 331900519. The reversal of 331900461 is 164009133.

It can be written as a sum of positive squares in only one way, i.e., 218477961 + 113422500 = 14781^2 + 10650^2 .

It is not a de Polignac number, because 331900461 - 2⁹ = 331899949 is a prime.

It is a super-2 number, since 2×331900461² = 220315832024025042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331900561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18438906 + ... + 18438923.

It is an arithmetic number, because the mean of its divisors is an integer number (79901965).

Almost surely, 2^331900461 is an apocalyptic number.

It is an amenable number.

331900461 is a deficient number, since it is larger than the sum of its proper divisors (147511329).

331900461 is a wasteful number, since it uses less digits than its factorization.

331900461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36877835 (or 36877832 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 331900461 is about 18218.1354973554. The cubic root of 331900461 is about 692.3663491982.

Adding to 331900461 its reverse (164009133), we get a palindrome (495909594).

The spelling of 331900461 in words is "three hundred thirty-one million, nine hundred thousand, four hundred sixty-one".