1353723894 has 32 divisors (see below), whose sum is σ = 3166608000. Its totient is φ = 427491432.

The previous prime is 1353723887. The next prime is 1353723901. The reversal of 1353723894 is 4983273531.

1353723894 is a `hidden beast` number, since 1 + 3 + 537 + 23 + 8 + 94 = 666.

It is an interprime number because it is at equal distance from previous prime (1353723887) and next prime (1353723901).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658684 + ... + 660735.

It is an arithmetic number, because the mean of its divisors is an integer number (98956500).

Almost surely, 2^1353723894 is an apocalyptic number.

1353723894 is an abundant number, since it is smaller than the sum of its proper divisors (1812884106).

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

1353723894 is a wasteful number, since it uses less digits than its factorization.

1353723894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319449 (or 1319443 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 1353723894 is about 36792.9870219856. The cubic root of 1353723894 is about 1106.2247346140.

The spelling of 1353723894 in words is "one billion, three hundred fifty-three million, seven hundred twenty-three thousand, eight hundred ninety-four".