61035240 has 64 divisors (see below), whose sum is σ = 209266560. Its totient is φ = 13950720.

The previous prime is 61035229. The next prime is 61035251. The reversal of 61035240 is 4253016.

It is a happy number.

61035240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61035229) and next prime (61035251).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35491 + ... + 37170.

It is an arithmetic number, because the mean of its divisors is an integer number (3269790).

Almost surely, 2^61035240 is an apocalyptic number.

61035240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61035240 is an abundant number, since it is smaller than the sum of its proper divisors (148231320).

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

61035240 is a wasteful number, since it uses less digits than its factorization.

61035240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72682 (or 72678 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 61035240 is about 7812.5053599982. The cubic root of 61035240 is about 393.7255081768.

Adding to 61035240 its reverse (4253016), we get a palindrome (65288256).

The spelling of 61035240 in words is "sixty-one million, thirty-five thousand, two hundred forty".