1405013712 has 20 divisors (see below), whose sum is σ = 3629618880. Its totient is φ = 468337888.

The previous prime is 1405013711. The next prime is 1405013741. The reversal of 1405013712 is 2173105041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405013711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14635512 + ... + 14635607.

It is an arithmetic number, because the mean of its divisors is an integer number (181480944).

Almost surely, 2^1405013712 is an apocalyptic number.

1405013712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1405013712 is an abundant number, since it is smaller than the sum of its proper divisors (2224605168).

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

1405013712 is a wasteful number, since it uses less digits than its factorization.

1405013712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29271130 (or 29271124 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1405013712 is about 37483.5125355135. The cubic root of 1405013712 is about 1120.0227758974.

Adding to 1405013712 its reverse (2173105041), we get a palindrome (3578118753).

The spelling of 1405013712 in words is "one billion, four hundred five million, thirteen thousand, seven hundred twelve".