62138540 has 48 divisors (see below), whose sum is σ = 135251424. Its totient is φ = 23961600.

The previous prime is 62138509. The next prime is 62138551. The reversal of 62138540 is 4583126.

It is a super-2 number, since 2×62138540² = 7722396306663200, which contains 22 as substring.

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, 96620 + ... + 97260.

It is an arithmetic number, because the mean of its divisors is an integer number (2817738).

Almost surely, 2^62138540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 62138540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67625712).

62138540 is an abundant number, since it is smaller than the sum of its proper divisors (73112884).

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

62138540 is a wasteful number, since it uses less digits than its factorization.

62138540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 62138540 is about 7882.8002638656. The cubic root of 62138540 is about 396.0837407504.

The spelling of 62138540 in words is "sixty-two million, one hundred thirty-eight thousand, five hundred forty".