1420742 has 4 divisors (see below), whose sum is σ = 2131116. Its totient is φ = 710370.

The previous prime is 1420729. The next prime is 1420753. The reversal of 1420742 is 2470241.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1420742³ = 8603336556633475464, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355184 + ... + 355187.

It is an arithmetic number, because the mean of its divisors is an integer number (532779).

2^1420742 is an apocalyptic number.

1420742 is a deficient number, since it is larger than the sum of its proper divisors (710374).

1420742 is an equidigital number, since it uses as much as digits as its factorization.

1420742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710373.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1420742 is about 1191.9488244048. The cubic root of 1420742 is about 112.4186605459.

Adding to 1420742 its reverse (2470241), we get a palindrome (3890983).

The spelling of 1420742 in words is "one million, four hundred twenty thousand, seven hundred forty-two".