61405368 has 32 divisors (see below), whose sum is σ = 154928400. Its totient is φ = 20279808.

The previous prime is 61405367. The next prime is 61405373. The reversal of 61405368 is 86350416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61405367) 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, 9121 + ... + 14352.

Almost surely, 2^61405368 is an apocalyptic number.

It is an amenable number.

61405368 is an abundant number, since it is smaller than the sum of its proper divisors (93523032).

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

61405368 is a wasteful number, since it uses less digits than its factorization.

61405368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23591 (or 23587 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 61405368 is about 7836.1577319500. The cubic root of 61405368 is about 394.5197774577.

The spelling of 61405368 in words is "sixty-one million, four hundred five thousand, three hundred sixty-eight".