724196970 has 384 divisors, whose sum is σ = 2455833600. Its totient is φ = 150885504.

The previous prime is 724196969. The next prime is 724197049. The reversal of 724196970 is 79691427.

It is a super-2 number, since 2×724196970² = 1048922502714361800, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10808877 + ... + 10808943.

It is an arithmetic number, because the mean of its divisors is an integer number (6395400).

Almost surely, 2^724196970 is an apocalyptic number.

724196970 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 724196970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227916800).

724196970 is an abundant number, since it is smaller than the sum of its proper divisors (1731636630).

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

724196970 is a wasteful number, since it uses less digits than its factorization.

724196970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 724196970 is about 26910.9080114366. The cubic root of 724196970 is about 898.0190876279.

The spelling of 724196970 in words is "seven hundred twenty-four million, one hundred ninety-six thousand, nine hundred seventy".