61380436 has 48 divisors (see below), whose sum is σ = 120011584. Its totient is φ = 27288576.

The previous prime is 61380433. The next prime is 61380437. The reversal of 61380436 is 63408316.

61380436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61380398 and 61380407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61380433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216751 + ... + 217033.

Almost surely, 2^61380436 is an apocalyptic number.

It is an amenable number.

61380436 is a deficient number, since it is larger than the sum of its proper divisors (58631148).

61380436 is a wasteful number, since it uses less digits than its factorization.

61380436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 61380436 is about 7834.5667397757. The cubic root of 61380436 is about 394.4663755107.

It can be divided in two parts, 61380 and 436, that added together give a palindrome (61816).

The spelling of 61380436 in words is "sixty-one million, three hundred eighty thousand, four hundred thirty-six".