723013491204 has 135 divisors (see below), whose sum is σ = 1913716118853. Its totient is φ = 238030140672.

The previous prime is 723013491197. The next prime is 723013491247. The reversal of 723013491204 is 402194310327.

It is a happy number.

The square root of 723013491204 is 850302.

It is a perfect power (a square), and thus also a powerful number.

723013491204 is a `hidden beast` number, since 7 + 2 + 301 + 349 + 1 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 324660644100 + 398352847104 = 569790^2 + 631152^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1484627049 + ... + 1484627535.

Almost surely, 2^723013491204 is an apocalyptic number.

723013491204 is the 850302-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 723013491204

723013491204 is an abundant number, since it is smaller than the sum of its proper divisors (1190702627649).

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

723013491204 is an frugal number, since it uses more digits than its factorization.

723013491204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

Multiplying 723013491204 by its sum of digits (36), we get a square (26028485683344 = 5101812²).

723013491204 divided by its sum of digits (36) gives a square (20083708089 = 141717²).

The spelling of 723013491204 in words is "seven hundred twenty-three billion, thirteen million, four hundred ninety-one thousand, two hundred four".