730970240 has 384 divisors, whose sum is σ = 2402809920. Its totient is φ = 209018880.

The previous prime is 730970239. The next prime is 730970257. The reversal of 730970240 is 42079037.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 730970197 and 730970206.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4484399 + ... + 4484561.

Almost surely, 2^730970240 is an apocalyptic number.

730970240 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 730970240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201404960).

730970240 is an abundant number, since it is smaller than the sum of its proper divisors (1671839680).

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

730970240 is a wasteful number, since it uses less digits than its factorization.

730970240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 730970240 is about 27036.4613069092. The cubic root of 730970240 is about 900.8100690109.

The spelling of 730970240 in words is "seven hundred thirty million, nine hundred seventy thousand, two hundred forty".