61223430 has 16 divisors (see below), whose sum is σ = 146936304. Its totient is φ = 16326240.

The previous prime is 61223423. The next prime is 61223467. The reversal of 61223430 is 3432216.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 61223397 and 61223406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020361 + ... + 1020420.

It is an arithmetic number, because the mean of its divisors is an integer number (9183519).

Almost surely, 2^61223430 is an apocalyptic number.

61223430 is an abundant number, since it is smaller than the sum of its proper divisors (85712874).

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

61223430 is a wasteful number, since it uses less digits than its factorization.

61223430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040791.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 61223430 is about 7824.5402420845. The cubic root of 61223430 is about 394.1297510424.

Adding to 61223430 its reverse (3432216), we get a palindrome (64655646).

It can be divided in two parts, 612 and 23430, that added together give a palindrome (24042).

The spelling of 61223430 in words is "sixty-one million, two hundred twenty-three thousand, four hundred thirty".