76749420 has 96 divisors (see below), whose sum is σ = 236920320. Its totient is φ = 18408960.

The previous prime is 76749419. The next prime is 76749443. The reversal of 76749420 is 2494767.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67416 + ... + 68544.

It is an arithmetic number, because the mean of its divisors is an integer number (2467920).

Almost surely, 2^76749420 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 76749420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118460160).

76749420 is an abundant number, since it is smaller than the sum of its proper divisors (160170900).

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

76749420 is a wasteful number, since it uses less digits than its factorization.

76749420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 76749420 is about 8760.6746315566. The cubic root of 76749420 is about 424.9700924744.

The spelling of 76749420 in words is "seventy-six million, seven hundred forty-nine thousand, four hundred twenty".