61403742 has 24 divisors (see below), whose sum is σ = 136137144. Its totient is φ = 19991664.

The previous prime is 61403669. The next prime is 61403747. The reversal of 61403742 is 24730416.

61403742 is a `hidden beast` number, since 614 + 0 + 3 + 7 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61403747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38893 + ... + 40440.

It is an arithmetic number, because the mean of its divisors is an integer number (5672381).

Almost surely, 2^61403742 is an apocalyptic number.

61403742 is an abundant number, since it is smaller than the sum of its proper divisors (74733402).

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

61403742 is a wasteful number, since it uses less digits than its factorization.

61403742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79384 (or 79381 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 61403742 is about 7836.0539814373. The cubic root of 61403742 is about 394.5162951627.

The spelling of 61403742 in words is "sixty-one million, four hundred three thousand, seven hundred forty-two".