747479040 has 448 divisors, whose sum is σ = 3019714560. Its totient is φ = 153354240.

The previous prime is 747479027. The next prime is 747479071. The reversal of 747479040 is 40974747.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 747478983 and 747479001.

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, 9461721 + ... + 9461799.

Almost surely, 2^747479040 is an apocalyptic number.

747479040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509857280).

747479040 is an abundant number, since it is smaller than the sum of its proper divisors (2272235520).

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

747479040 is a wasteful number, since it uses less digits than its factorization.

747479040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 107 counting only the distinct ones).

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

The square root of 747479040 is about 27340.0629114126. The cubic root of 747479040 is about 907.5411785305.

The spelling of 747479040 in words is "seven hundred forty-seven million, four hundred seventy-nine thousand, forty".