1405952 has 22 divisors (see below), whose sum is σ = 2812578. Its totient is φ = 702464.

The previous prime is 1405939. The next prime is 1405979. The reversal of 1405952 is 2595041.

It can be written as a sum of positive squares in only one way, i.e., 1401856 + 4096 = 1184^2 + 64^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338 + ... + 1710.

2^1405952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1405952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406289).

1405952 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1405952 is an equidigital number, since it uses as much as digits as its factorization.

1405952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1375 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1405952 is about 1185.7284680735. The cubic root of 1405952 is about 112.0272042760.

The spelling of 1405952 in words is "one million, four hundred five thousand, nine hundred fifty-two".