61405422 has 32 divisors (see below), whose sum is σ = 135838752. Its totient is φ = 18382464.

The previous prime is 61405417. The next prime is 61405447. The reversal of 61405422 is 22450416.

It is a junction number, because it is equal to n+sod(n) for n = 61405392 and 61405401.

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, 7753 + ... + 13524.

It is an arithmetic number, because the mean of its divisors is an integer number (4244961).

Almost surely, 2^61405422 is an apocalyptic number.

61405422 is an abundant number, since it is smaller than the sum of its proper divisors (74433330).

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

61405422 is a wasteful number, since it uses less digits than its factorization.

61405422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 61405422 is about 7836.1611775154. The cubic root of 61405422 is about 394.5198931048.

Adding to 61405422 its reverse (22450416), we get a palindrome (83855838).

The spelling of 61405422 in words is "sixty-one million, four hundred five thousand, four hundred twenty-two".