60649440 has 96 divisors (see below), whose sum is σ = 197678880. Its totient is φ = 15611904.

The previous prime is 60649409. The next prime is 60649451. The reversal of 60649440 is 4494606.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11742 + ... + 16098.

It is an arithmetic number, because the mean of its divisors is an integer number (2059155).

Almost surely, 2^60649440 is an apocalyptic number.

60649440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60649440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98839440).

60649440 is an abundant number, since it is smaller than the sum of its proper divisors (137029440).

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

60649440 is a wasteful number, since it uses less digits than its factorization.

60649440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404 (or 4396 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 60649440 is about 7787.7750352716. The cubic root of 60649440 is about 392.8941825447.

The spelling of 60649440 in words is "sixty million, six hundred forty-nine thousand, four hundred forty".