61940478 has 16 divisors (see below), whose sum is σ = 124344720. Its totient is φ = 20569536.

The previous prime is 61940477. The next prime is 61940497. The reversal of 61940478 is 87404916.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61940477) 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, 17575 + ... + 20802.

It is an arithmetic number, because the mean of its divisors is an integer number (7771545).

Almost surely, 2^61940478 is an apocalyptic number.

61940478 is an abundant number, since it is smaller than the sum of its proper divisors (62404242).

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

61940478 is a wasteful number, since it uses less digits than its factorization.

61940478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38651.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 61940478 is about 7870.2273156498. The cubic root of 61940478 is about 395.6624636276.

The spelling of 61940478 in words is "sixty-one million, nine hundred forty thousand, four hundred seventy-eight".