62540020 has 48 divisors (see below), whose sum is σ = 142732800. Its totient is φ = 22930560.

The previous prime is 62539987. The next prime is 62540021. The reversal of 62540020 is 2004526.

It is a super-2 number, since 2×62540020² = 7822508203200800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 62540020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62540021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9126 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (2973600).

Almost surely, 2^62540020 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 62540020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71366400).

62540020 is an abundant number, since it is smaller than the sum of its proper divisors (80192780).

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

62540020 is a wasteful number, since it uses less digits than its factorization.

62540020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368 (or 5366 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 62540020 is about 7908.2248324134. The cubic root of 62540020 is about 396.9349486394.

Adding to 62540020 its reverse (2004526), we get a palindrome (64544546).

The spelling of 62540020 in words is "sixty-two million, five hundred forty thousand, twenty".