61690468 has 36 divisors (see below), whose sum is σ = 125695360. Its totient is φ = 25947792.

The previous prime is 61690379. The next prime is 61690471. The reversal of 61690468 is 86409616.

61690468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61690468.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 369321 + ... + 369487.

Almost surely, 2^61690468 is an apocalyptic number.

It is an amenable number.

61690468 is an abundant number, since it is smaller than the sum of its proper divisors (64004892).

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

61690468 is a wasteful number, since it uses less digits than its factorization.

61690468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 61690468 is about 7854.3279788916. The cubic root of 61690468 is about 395.1294090754.

The spelling of 61690468 in words is "sixty-one million, six hundred ninety thousand, four hundred sixty-eight".