1405252 has 12 divisors (see below), whose sum is σ = 2490880. Its totient is φ = 693576.

The previous prime is 1405249. The next prime is 1405267. The reversal of 1405252 is 2525041.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1908 + ... + 2539.

2^1405252 is an apocalyptic number.

It is an amenable number.

1405252 is a deficient number, since it is larger than the sum of its proper divisors (1085628).

1405252 is a wasteful number, since it uses less digits than its factorization.

1405252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530 (or 4528 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1405252 is about 1185.4332541312. The cubic root of 1405252 is about 112.0086090321.

The spelling of 1405252 in words is "one million, four hundred five thousand, two hundred fifty-two".