761382780 has 96 divisors (see below), whose sum is σ = 2165366784. Its totient is φ = 199874304.

The previous prime is 761382761. The next prime is 761382793. The reversal of 761382780 is 87283167.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1241754 + ... + 1242366.

It is an arithmetic number, because the mean of its divisors is an integer number (22555904).

Almost surely, 2^761382780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 761382780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082683392).

761382780 is an abundant number, since it is smaller than the sum of its proper divisors (1403984004).

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

761382780 is a wasteful number, since it uses less digits than its factorization.

761382780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 761382780 is about 27593.1654581347. The cubic root of 761382780 is about 913.1336558295.

The spelling of 761382780 in words is "seven hundred sixty-one million, three hundred eighty-two thousand, seven hundred eighty".