61114440 has 32 divisors (see below), whose sum is σ = 183343680. Its totient is φ = 16297152.

The previous prime is 61114411. The next prime is 61114453. The reversal of 61114440 is 4441116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254524 + ... + 254763.

It is an arithmetic number, because the mean of its divisors is an integer number (5729490).

Almost surely, 2^61114440 is an apocalyptic number.

61114440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61114440 is an abundant number, since it is smaller than the sum of its proper divisors (122229240).

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

61114440 is a wasteful number, since it uses less digits than its factorization.

61114440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509301 (or 509297 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 61114440 is about 7817.5725132550. The cubic root of 61114440 is about 393.8957354211.

Adding to 61114440 its reverse (4441116), we get a palindrome (65555556).

It can be divided in two parts, 611 and 14440, that added together give a palindrome (15051).

The spelling of 61114440 in words is "sixty-one million, one hundred fourteen thousand, four hundred forty".