730732725450 has 288 divisors, whose sum is σ = 2419608801792. Its totient is φ = 153964800000.

The previous prime is 730732725433. The next prime is 730732725487. The reversal of 730732725450 is 54527237037.

It is a happy number.

730732725450 is a `hidden beast` number, since 7 + 3 + 0 + 7 + 32 + 72 + 545 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 730732725396 and 730732725405.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 30741570 + ... + 30765330.

Almost surely, 2^730732725450 is an apocalyptic number.

730732725450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 730732725450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209804400896).

730732725450 is an abundant number, since it is smaller than the sum of its proper divisors (1688876076342).

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

730732725450 is a wasteful number, since it uses less digits than its factorization.

730732725450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24550 (or 24542 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 45.

The spelling of 730732725450 in words is "seven hundred thirty billion, seven hundred thirty-two million, seven hundred twenty-five thousand, four hundred fifty".