61460220 has 24 divisors (see below), whose sum is σ = 172088784. Its totient is φ = 16389376.

The previous prime is 61460173. The next prime is 61460221. The reversal of 61460220 is 2206416.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61460221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512109 + ... + 512228.

It is an arithmetic number, because the mean of its divisors is an integer number (7170366).

Almost surely, 2^61460220 is an apocalyptic number.

61460220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61460220 is an abundant number, since it is smaller than the sum of its proper divisors (110628564).

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

61460220 is a wasteful number, since it uses less digits than its factorization.

61460220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024349 (or 1024347 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 61460220 is about 7839.6568802467. The cubic root of 61460220 is about 394.6372143050.

Adding to 61460220 its reverse (2206416), we get a palindrome (63666636).

The spelling of 61460220 in words is "sixty-one million, four hundred sixty thousand, two hundred twenty".