1420434 has 48 divisors (see below), whose sum is σ = 3324672. Its totient is φ = 437184.

The previous prime is 1420429. The next prime is 1420483. The reversal of 1420434 is 4340241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19422 + ... + 19494.

It is an arithmetic number, because the mean of its divisors is an integer number (69264).

2^1420434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1662336).

1420434 is an abundant number, since it is smaller than the sum of its proper divisors (1904238).

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

1420434 is a wasteful number, since it uses less digits than its factorization.

1420434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1420434 is about 1191.8196172240. The cubic root of 1420434 is about 112.4105362818.

Adding to 1420434 its reverse (4340241), we get a palindrome (5760675).

The spelling of 1420434 in words is "one million, four hundred twenty thousand, four hundred thirty-four".