772319420 has 12 divisors (see below), whose sum is σ = 1621870824. Its totient is φ = 308927760.

The previous prime is 772319411. The next prime is 772319423. The reversal of 772319420 is 24913277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772319423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19307966 + ... + 19308005.

It is an arithmetic number, because the mean of its divisors is an integer number (135155902).

Almost surely, 2^772319420 is an apocalyptic number.

It is an amenable number.

772319420 is an abundant number, since it is smaller than the sum of its proper divisors (849551404).

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

772319420 is a wasteful number, since it uses less digits than its factorization.

772319420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38615980 (or 38615978 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 772319420 is about 27790.6354731230. The cubic root of 772319420 is about 917.4850262488.

The spelling of 772319420 in words is "seven hundred seventy-two million, three hundred nineteen thousand, four hundred twenty".