61848840 has 64 divisors (see below), whose sum is σ = 193622400. Its totient is φ = 15775232.

The previous prime is 61848823. The next prime is 61848841. The reversal of 61848840 is 4884816.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61848841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8445 + ... + 13964.

It is an arithmetic number, because the mean of its divisors is an integer number (3025350).

Almost surely, 2^61848840 is an apocalyptic number.

61848840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61848840 is an abundant number, since it is smaller than the sum of its proper divisors (131773560).

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

61848840 is a wasteful number, since it uses less digits than its factorization.

61848840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22446 (or 22442 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 61848840 is about 7864.4033467263. The cubic root of 61848840 is about 395.4672460399.

The spelling of 61848840 in words is "sixty-one million, eight hundred forty-eight thousand, eight hundred forty".