361642420 has 24 divisors (see below), whose sum is σ = 760479048. Its totient is φ = 144460800.

The previous prime is 361642417. The next prime is 361642429. The reversal of 361642420 is 24246163.

It can be written as a sum of positive squares in 4 ways, for example, as 110224 + 361532196 = 332^2 + 19014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361642429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3340 + ... + 27100.

It is an arithmetic number, because the mean of its divisors is an integer number (31686627).

Almost surely, 2^361642420 is an apocalyptic number.

It is an amenable number.

361642420 is an abundant number, since it is smaller than the sum of its proper divisors (398836628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361642420 is a wasteful number, since it uses less digits than its factorization.

361642420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24531 (or 24529 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 361642420 is about 19016.8982749554. The cubic root of 361642420 is about 712.4588555291.

Adding to 361642420 its reverse (24246163), we get a palindrome (385888583).

The spelling of 361642420 in words is "three hundred sixty-one million, six hundred forty-two thousand, four hundred twenty".