60621540 has 192 divisors, whose sum is σ = 205922304. Its totient is φ = 13036032.

The previous prime is 60621521. The next prime is 60621551. The reversal of 60621540 is 4512606.

It is a super-2 number, since 2×60621540² = 7349942223943200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 60621540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 730339 + ... + 730421.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

Almost surely, 2^60621540 is an apocalyptic number.

60621540 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 60621540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102961152).

60621540 is an abundant number, since it is smaller than the sum of its proper divisors (145300764).

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

60621540 is a wasteful number, since it uses less digits than its factorization.

60621540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 60621540 is about 7785.9835602190. The cubic root of 60621540 is about 392.8339268138.

The spelling of 60621540 in words is "sixty million, six hundred twenty-one thousand, five hundred forty".