1427490 has 64 divisors (see below), whose sum is σ = 4043520. Its totient is φ = 357120.

The previous prime is 1427483. The next prime is 1427501. The reversal of 1427490 is 947241.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4435 + ... + 4745.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2^1427490 is an apocalyptic number.

1427490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021760).

1427490 is an abundant number, since it is smaller than the sum of its proper divisors (2616030).

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

1427490 is a wasteful number, since it uses less digits than its factorization.

1427490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1427490 is about 1194.7761296578. The cubic root of 1427490 is about 112.5963618821.

Subtracting from 1427490 its reverse (947241), we obtain a square (480249 = 693²).

The spelling of 1427490 in words is "one million, four hundred twenty-seven thousand, four hundred ninety".