61424412 has 24 divisors (see below), whose sum is σ = 163798656. Its totient is φ = 17549808.

The previous prime is 61424411. The next prime is 61424449. The reversal of 61424412 is 21442416.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61424411) 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, 365538 + ... + 365705.

It is an arithmetic number, because the mean of its divisors is an integer number (6824944).

Almost surely, 2^61424412 is an apocalyptic number.

It is an amenable number.

61424412 is an abundant number, since it is smaller than the sum of its proper divisors (102374244).

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

61424412 is a wasteful number, since it uses less digits than its factorization.

61424412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731257 (or 731255 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 61424412 is about 7837.3727740870. The cubic root of 61424412 is about 394.5605581382.

Adding to 61424412 its reverse (21442416), we get a palindrome (82866828).

The spelling of 61424412 in words is "sixty-one million, four hundred twenty-four thousand, four hundred twelve".