61812422 has 24 divisors (see below), whose sum is σ = 110777904. Its totient is φ = 25773552.

The previous prime is 61812409. The next prime is 61812433. The reversal of 61812422 is 22421816.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 61812391 and 61812400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4898 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (4615746).

Almost surely, 2^61812422 is an apocalyptic number.

61812422 is a deficient number, since it is larger than the sum of its proper divisors (48965482).

61812422 is a wasteful number, since it uses less digits than its factorization.

61812422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17100 (or 17093 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 61812422 is about 7862.0876362452. The cubic root of 61812422 is about 395.3896107717.

The spelling of 61812422 in words is "sixty-one million, eight hundred twelve thousand, four hundred twenty-two".