76734420 has 48 divisors (see below), whose sum is σ = 245551488. Its totient is φ = 17539200.

The previous prime is 76734419. The next prime is 76734421. The reversal of 76734420 is 2443767.

It is an interprime number because it is at equal distance from previous prime (76734419) and next prime (76734421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76734421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90931 + ... + 91770.

It is an arithmetic number, because the mean of its divisors is an integer number (5115656).

Almost surely, 2^76734420 is an apocalyptic number.

76734420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76734420 is an abundant number, since it is smaller than the sum of its proper divisors (168817068).

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

76734420 is a wasteful number, since it uses less digits than its factorization.

76734420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182720 (or 182718 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 76734420 is about 8759.8184912702. The cubic root of 76734420 is about 424.9424051134.

The spelling of 76734420 in words is "seventy-six million, seven hundred thirty-four thousand, four hundred twenty".