1340753472 has 252 divisors, whose sum is σ = 4159357696. Its totient is φ = 428302080.

The previous prime is 1340753417. The next prime is 1340753473. The reversal of 1340753472 is 2743570431.

1340753472 is a `hidden beast` number, since 13 + 40 + 7 + 534 + 72 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1340753473) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13016973 + ... + 13017075.

Almost surely, 2^1340753472 is an apocalyptic number.

1340753472 is a gapful number since it is divisible by the number (12) 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 1340753472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2079678848).

1340753472 is an abundant number, since it is smaller than the sum of its proper divisors (2818604224).

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

1340753472 is an frugal number, since it uses more digits than its factorization.

1340753472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 1340753472 is about 36616.3006323686. The cubic root of 1340753472 is about 1102.6803703230.

The spelling of 1340753472 in words is "one billion, three hundred forty million, seven hundred fifty-three thousand, four hundred seventy-two".