1471990 has 32 divisors (see below), whose sum is σ = 2913120. Its totient is φ = 535392.

The previous prime is 1471937. The next prime is 1472017. The reversal of 1471990 is 991741.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21937 + ... + 22003.

It is an arithmetic number, because the mean of its divisors is an integer number (91035).

2^1471990 is an apocalyptic number.

1471990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1471990 is a deficient number, since it is larger than the sum of its proper divisors (1441130).

1471990 is an equidigital number, since it uses as much as digits as its factorization.

1471990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 1471990 is about 1213.2559499133. The cubic root of 1471990 is about 113.7544215968.

Subtracting from 1471990 its reverse (991741), we obtain a square (480249 = 693²).

The spelling of 1471990 in words is "one million, four hundred seventy-one thousand, nine hundred ninety".