770245740 has 96 divisors (see below), whose sum is σ = 2614187520. Its totient is φ = 186724800.

The previous prime is 770245711. The next prime is 770245753. The reversal of 770245740 is 47542077.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 770245695 and 770245704.

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, 58896 + ... + 70775.

It is an arithmetic number, because the mean of its divisors is an integer number (27231120).

Almost surely, 2^770245740 is an apocalyptic number.

It is an amenable number.

770245740 is an abundant number, since it is smaller than the sum of its proper divisors (1843941780).

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

770245740 is a wasteful number, since it uses less digits than its factorization.

770245740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129700 (or 129692 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 770245740 is about 27753.3014252359. The cubic root of 770245740 is about 916.6631401885.

The spelling of 770245740 in words is "seven hundred seventy million, two hundred forty-five thousand, seven hundred forty".