73761240 has 64 divisors (see below), whose sum is σ = 252898560. Its totient is φ = 16859520.

The previous prime is 73761229. The next prime is 73761241. The reversal of 73761240 is 4216737.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 73761198 and 73761207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73761241) 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 15 ways as a sum of consecutive naturals, for example, 43066 + ... + 44745.

It is an arithmetic number, because the mean of its divisors is an integer number (3951540).

Almost surely, 2^73761240 is an apocalyptic number.

73761240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73761240 is an abundant number, since it is smaller than the sum of its proper divisors (179137320).

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

73761240 is a wasteful number, since it uses less digits than its factorization.

73761240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87832 (or 87828 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 73761240 is about 8588.4364118272. The cubic root of 73761240 is about 419.3816296964.

Adding to 73761240 its reverse (4216737), we get a palindrome (77977977).

The spelling of 73761240 in words is "seventy-three million, seven hundred sixty-one thousand, two hundred forty".