61411040 has 48 divisors (see below), whose sum is σ = 152727120. Its totient is φ = 23270400.

The previous prime is 61411033. The next prime is 61411043. The reversal of 61411040 is 4011416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61411043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7061 + ... + 13140.

It is an arithmetic number, because the mean of its divisors is an integer number (3181815).

Almost surely, 2^61411040 is an apocalyptic number.

It is an amenable number.

61411040 is an abundant number, since it is smaller than the sum of its proper divisors (91316080).

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

61411040 is a wasteful number, since it uses less digits than its factorization.

61411040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20235 (or 20227 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 61411040 is about 7836.5196356546. The cubic root of 61411040 is about 394.5319243180.

Adding to 61411040 its reverse (4011416), we get a palindrome (65422456).

The spelling of 61411040 in words is "sixty-one million, four hundred eleven thousand, forty".