961621230 has 32 divisors (see below), whose sum is σ = 2309586048. Its totient is φ = 256244000.

The previous prime is 961621223. The next prime is 961621249. The reversal of 961621230 is 32126169.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32485 + ... + 54575.

It is an arithmetic number, because the mean of its divisors is an integer number (72174564).

Almost surely, 2^961621230 is an apocalyptic number.

961621230 is an abundant number, since it is smaller than the sum of its proper divisors (1347964818).

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

961621230 is a wasteful number, since it uses less digits than its factorization.

961621230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23552.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 961621230 is about 31010.0182199237. The cubic root of 961621230 is about 987.0398364490.

Adding to 961621230 its reverse (32126169), we get a palindrome (993747399).

The spelling of 961621230 in words is "nine hundred sixty-one million, six hundred twenty-one thousand, two hundred thirty".