61380342 has 32 divisors (see below), whose sum is σ = 138094560. Its totient is φ = 20458656.

The previous prime is 61380331. The next prime is 61380359. The reversal of 61380342 is 24308316.

It is a happy number.

61380342 is a `hidden beast` number, since 613 + 8 + 0 + 3 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2643 + ... + 11390.

It is an arithmetic number, because the mean of its divisors is an integer number (4315455).

Almost surely, 2^61380342 is an apocalyptic number.

61380342 is an abundant number, since it is smaller than the sum of its proper divisors (76714218).

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

61380342 is an equidigital number, since it uses as much as digits as its factorization.

61380342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14056 (or 14038 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 61380342 is about 7834.5607407180. The cubic root of 61380342 is about 394.4661741444.

Adding to 61380342 its reverse (24308316), we get a palindrome (85688658).

It can be divided in two parts, 61380 and 342, that multiplied together give a triangular number (20991960 = T₆₄₇₉).

The spelling of 61380342 in words is "sixty-one million, three hundred eighty thousand, three hundred forty-two".