202642461 has 24 divisors (see below), whose sum is σ = 337843584. Its totient is φ = 114645600.

The previous prime is 202642457. The next prime is 202642463. The reversal of 202642461 is 164246202.

It is not a de Polignac number, because 202642461 - 2² = 202642457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202642463) 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, 9561 + ... + 22286.

It is an arithmetic number, because the mean of its divisors is an integer number (14076816).

Almost surely, 2^202642461 is an apocalyptic number.

202642461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202642461 is a deficient number, since it is larger than the sum of its proper divisors (135201123).

202642461 is a wasteful number, since it uses less digits than its factorization.

202642461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31961 (or 31958 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 202642461 is about 14235.2541600071. The cubic root of 202642461 is about 587.3678215392.

Adding to 202642461 its reverse (164246202), we get a palindrome (366888663).

The spelling of 202642461 in words is "two hundred two million, six hundred forty-two thousand, four hundred sixty-one".