1478740 has 24 divisors (see below), whose sum is σ = 3138912. Its totient is φ = 585120.

The previous prime is 1478723. The next prime is 1478759. The reversal of 1478740 is 478741.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1795 + ... + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (130788).

2^1478740 is an apocalyptic number.

1478740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478740 is an abundant number, since it is smaller than the sum of its proper divisors (1660172).

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

1478740 is a wasteful number, since it uses less digits than its factorization.

1478740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 1478740 is about 1216.0345389832. The cubic root of 1478740 is about 113.9280350151.

Subtracting from 1478740 its reverse (478741), we obtain a palindrome (999999).

The spelling of 1478740 in words is "one million, four hundred seventy-eight thousand, seven hundred forty".