747792240 has 160 divisors (see below), whose sum is σ = 2525463360. Its totient is φ = 181936128.

The previous prime is 747792239. The next prime is 747792271. The reversal of 747792240 is 42297747.

It is a junction number, because it is equal to n+sod(n) for n = 747792192 and 747792201.

It is a congruent number.

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, 276334 + ... + 279026.

It is an arithmetic number, because the mean of its divisors is an integer number (15784146).

Almost surely, 2^747792240 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 747792240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262731680).

747792240 is an abundant number, since it is smaller than the sum of its proper divisors (1777671120).

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

747792240 is a wasteful number, since it uses less digits than its factorization.

747792240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 747792240 is about 27345.7901696038. The cubic root of 747792240 is about 907.6679166245.

The spelling of 747792240 in words is "seven hundred forty-seven million, seven hundred ninety-two thousand, two hundred forty".