61627240 has 16 divisors (see below), whose sum is σ = 138661380. Its totient is φ = 24650880.

The previous prime is 61627229. The next prime is 61627253. The reversal of 61627240 is 4272616.

It can be written as a sum of positive squares in 2 ways, for example, as 61183684 + 443556 = 7822^2 + 666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61627199 and 61627208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770301 + ... + 770380.

Almost surely, 2^61627240 is an apocalyptic number.

It is an amenable number.

61627240 is an abundant number, since it is smaller than the sum of its proper divisors (77034140).

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

61627240 is a wasteful number, since it uses less digits than its factorization.

61627240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540692 (or 1540688 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 61627240 is about 7850.3019050225. The cubic root of 61627240 is about 394.9943704800.

Adding to 61627240 its reverse (4272616), we get a palindrome (65899856).

The spelling of 61627240 in words is "sixty-one million, six hundred twenty-seven thousand, two hundred forty".