1390473 has 24 divisors (see below), whose sum is σ = 2398560. Its totient is φ = 793800.

The previous prime is 1390471. The next prime is 1390483. The reversal of 1390473 is 3740931.

It is not a de Polignac number, because 1390473 - 2¹ = 1390471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1390471) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 798 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (99940).

2^1390473 is an apocalyptic number.

It is an amenable number.

1390473 is a deficient number, since it is larger than the sum of its proper divisors (1008087).

1390473 is a wasteful number, since it uses less digits than its factorization.

1390473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1390473 is about 1179.1831918748. The cubic root of 1390473 is about 111.6145604774.

The spelling of 1390473 in words is "one million, three hundred ninety thousand, four hundred seventy-three".