761618420 has 48 divisors (see below), whose sum is σ = 1707350400. Its totient is φ = 284538240.

The previous prime is 761618399. The next prime is 761618423. The reversal of 761618420 is 24816167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761618423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12866 + ... + 41094.

It is an arithmetic number, because the mean of its divisors is an integer number (35569800).

Almost surely, 2^761618420 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 761618420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853675200).

761618420 is an abundant number, since it is smaller than the sum of its proper divisors (945731980).

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

761618420 is a wasteful number, since it uses less digits than its factorization.

761618420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28328 (or 28326 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 761618420 is about 27597.4350257411. The cubic root of 761618420 is about 913.2278478822.

The spelling of 761618420 in words is "seven hundred sixty-one million, six hundred eighteen thousand, four hundred twenty".