1047390 has 16 divisors (see below), whose sum is σ = 2513808. Its totient is φ = 279296.

The previous prime is 1047379. The next prime is 1047391. The reversal of 1047390 is 937401.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1047390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17427 + ... + 17486.

It is an arithmetic number, because the mean of its divisors is an integer number (157113).

2^1047390 is an apocalyptic number.

1047390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1047390 is an abundant number, since it is smaller than the sum of its proper divisors (1466418).

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

1047390 is a wasteful number, since it uses less digits than its factorization.

1047390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34923.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1047390 is about 1023.4207345955. The cubic root of 1047390 is about 101.5553501081. Note that the first 3 decimals are identical.

The spelling of 1047390 in words is "one million, forty-seven thousand, three hundred ninety".