1479640 has 32 divisors (see below), whose sum is σ = 3382560. Its totient is φ = 582400.

The previous prime is 1479617. The next prime is 1479671. The reversal of 1479640 is 469741.

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 7 ways as a sum of consecutive naturals, for example, 2580 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (105705).

2^1479640 is an apocalyptic number.

1479640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1479640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691280).

1479640 is an abundant number, since it is smaller than the sum of its proper divisors (1902920).

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

1479640 is a wasteful number, since it uses less digits than its factorization.

1479640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1479640 is about 1216.4045379725. The cubic root of 1479640 is about 113.9511435256.

The spelling of 1479640 in words is "one million, four hundred seventy-nine thousand, six hundred forty".