62645540 has 48 divisors (see below), whose sum is σ = 135750384. Its totient is φ = 24268800.

The previous prime is 62645533. The next prime is 62645543. The reversal of 62645540 is 4554626.

It can be written as a sum of positive squares in 8 ways, for example, as 14092516 + 48553024 = 3754^2 + 6968^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 62645497 and 62645506.

It is not an unprimeable number, because it can be changed into a prime (62645543) 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, 197462 + ... + 197778.

It is an arithmetic number, because the mean of its divisors is an integer number (2828133).

Almost surely, 2^62645540 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 62645540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67875192).

62645540 is an abundant number, since it is smaller than the sum of its proper divisors (73104844).

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

62645540 is a wasteful number, since it uses less digits than its factorization.

62645540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 62645540 is about 7914.8935558225. The cubic root of 62645540 is about 397.1580646613.

The spelling of 62645540 in words is "sixty-two million, six hundred forty-five thousand, five hundred forty".