61024040 has 64 divisors (see below), whose sum is σ = 171192960. Its totient is φ = 19019520.

The previous prime is 61024013. The next prime is 61024043. The reversal of 61024040 is 4042016.

It is not an unprimeable number, because it can be changed into a prime (61024043) 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, 6827 + ... + 12986.

It is an arithmetic number, because the mean of its divisors is an integer number (2674890).

Almost surely, 2^61024040 is an apocalyptic number.

It is an amenable number.

61024040 is an abundant number, since it is smaller than the sum of its proper divisors (110168920).

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

61024040 is a wasteful number, since it uses less digits than its factorization.

61024040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19842 (or 19838 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 61024040 is about 7811.7885276036. The cubic root of 61024040 is about 393.7014237547.

Adding to 61024040 its reverse (4042016), we get a palindrome (65066056).

The spelling of 61024040 in words is "sixty-one million, twenty-four thousand, forty".