60420240 has 120 divisors (see below), whose sum is σ = 209534208. Its totient is φ = 15586560.

The previous prime is 60420221. The next prime is 60420251. The reversal of 60420240 is 4202406.

60420240 is a `hidden beast` number, since 6 + 0 + 420 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 20967 + ... + 23673.

Almost surely, 2^60420240 is an apocalyptic number.

60420240 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 60420240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104767104).

60420240 is an abundant number, since it is smaller than the sum of its proper divisors (149113968).

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

60420240 is a wasteful number, since it uses less digits than its factorization.

60420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 60420240 is about 7773.0457351028. The cubic root of 60420240 is about 392.3986296155.

Adding to 60420240 its reverse (4202406), we get a palindrome (64622646).

The spelling of 60420240 in words is "sixty million, four hundred twenty thousand, two hundred forty".