1405052 has 18 divisors (see below), whose sum is σ = 2703624. Its totient is φ = 638440.

The previous prime is 1405039. The next prime is 1405087. The reversal of 1405052 is 2505041.

It is a super-2 number, since 2×1405052² = 3948342245408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1405052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 968 + ... + 1935.

2^1405052 is an apocalyptic number.

1405052 is the 968-th pentagonal number.

It is an amenable number.

1405052 is a deficient number, since it is larger than the sum of its proper divisors (1298572).

1405052 is a wasteful number, since it uses less digits than its factorization.

1405052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1405052 is about 1185.3488937861. The cubic root of 1405052 is about 112.0032949711.

The spelling of 1405052 in words is "one million, four hundred five thousand, fifty-two".