61350740 has 24 divisors (see below), whose sum is σ = 140549472. Its totient is φ = 22309280.

The previous prime is 61350727. The next prime is 61350743. The reversal of 61350740 is 4705316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61350743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139214 + ... + 139653.

It is an arithmetic number, because the mean of its divisors is an integer number (5856228).

Almost surely, 2^61350740 is an apocalyptic number.

It is an amenable number.

61350740 is an abundant number, since it is smaller than the sum of its proper divisors (79198732).

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

61350740 is a wasteful number, since it uses less digits than its factorization.

61350740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278887 (or 278885 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 61350740 is about 7832.6713195435. The cubic root of 61350740 is about 394.4027506607.

The spelling of 61350740 in words is "sixty-one million, three hundred fifty thousand, seven hundred forty".