61628460 has 48 divisors (see below), whose sum is σ = 176580096. Its totient is φ = 16051392.

The previous prime is 61628459. The next prime is 61628471. The reversal of 61628460 is 6482616.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9364 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (3678752).

Almost surely, 2^61628460 is an apocalyptic number.

61628460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61628460 is an abundant number, since it is smaller than the sum of its proper divisors (114951636).

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

61628460 is a wasteful number, since it uses less digits than its factorization.

61628460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23942 (or 23940 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 61628460 is about 7850.3796086559. The cubic root of 61628460 is about 394.9969769570.

The spelling of 61628460 in words is "sixty-one million, six hundred twenty-eight thousand, four hundred sixty".