61489010 has 48 divisors (see below), whose sum is σ = 123681600. Its totient is φ = 21827520.

The previous prime is 61489009. The next prime is 61489061. The reversal of 61489010 is 1098416.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308891 + ... + 309089.

It is an arithmetic number, because the mean of its divisors is an integer number (2576700).

Almost surely, 2^61489010 is an apocalyptic number.

61489010 is an abundant number, since it is smaller than the sum of its proper divisors (62192590).

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

61489010 is a wasteful number, since it uses less digits than its factorization.

61489010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 61489010 is about 7841.4928425651. The cubic root of 61489010 is about 394.6988250607.

The spelling of 61489010 in words is "sixty-one million, four hundred eighty-nine thousand, ten".