61413340 has 36 divisors (see below), whose sum is σ = 132606936. Its totient is φ = 23890752.

The previous prime is 61413323. The next prime is 61413383. The reversal of 61413340 is 4331416.

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, 26259 + ... + 28501.

It is an arithmetic number, because the mean of its divisors is an integer number (3683526).

Almost surely, 2^61413340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61413340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66303468).

61413340 is an abundant number, since it is smaller than the sum of its proper divisors (71193596).

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

61413340 is a wasteful number, since it uses less digits than its factorization.

61413340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 61413340 is about 7836.6663830994. Note that the first 3 decimals coincide. The cubic root of 61413340 is about 394.5368496653.

Adding to 61413340 its reverse (4331416), we get a palindrome (65744756).

The spelling of 61413340 in words is "sixty-one million, four hundred thirteen thousand, three hundred forty".