773491540 has 48 divisors (see below), whose sum is σ = 1708439040. Its totient is φ = 293754240.

The previous prime is 773491513. The next prime is 773491553. The reversal of 773491540 is 45194377.

It is a junction number, because it is equal to n+sod(n) for n = 773491493 and 773491502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21091 + ... + 44629.

It is an arithmetic number, because the mean of its divisors is an integer number (35592480).

Almost surely, 2^773491540 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 773491540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854219520).

773491540 is an abundant number, since it is smaller than the sum of its proper divisors (934947500).

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

773491540 is a wasteful number, since it uses less digits than its factorization.

773491540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23632 (or 23630 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 773491540 is about 27811.7158765870. The cubic root of 773491540 is about 917.9489357603.

The spelling of 773491540 in words is "seven hundred seventy-three million, four hundred ninety-one thousand, five hundred forty".