61240288 has 24 divisors (see below), whose sum is σ = 120763440. Its totient is φ = 30570240.

The previous prime is 61240261. The next prime is 61240301. The reversal of 61240288 is 88204216.

It is a congruent number.

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, 25708 + ... + 27988.

It is an arithmetic number, because the mean of its divisors is an integer number (5031810).

Almost surely, 2^61240288 is an apocalyptic number.

It is an amenable number.

61240288 is a deficient number, since it is larger than the sum of its proper divisors (59523152).

61240288 is a wasteful number, since it uses less digits than its factorization.

61240288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3122 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 61240288 is about 7825.6174197312. The cubic root of 61240288 is about 394.1659225408.

The spelling of 61240288 in words is "sixty-one million, two hundred forty thousand, two hundred eighty-eight".