60840240 has 40 divisors (see below), whose sum is σ = 188605488. Its totient is φ = 16224000.

The previous prime is 60840233. The next prime is 60840253. The reversal of 60840240 is 4204806.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 60840240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126511 + ... + 126990.

Almost surely, 2^60840240 is an apocalyptic number.

60840240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60840240 is an abundant number, since it is smaller than the sum of its proper divisors (127765248).

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

60840240 is a wasteful number, since it uses less digits than its factorization.

60840240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253517 (or 253511 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 60840240 is about 7800.0153846002. The cubic root of 60840240 is about 393.3057595021.

The spelling of 60840240 in words is "sixty million, eight hundred forty thousand, two hundred forty".