1420426642 has 16 divisors (see below), whose sum is σ = 2157966720. Its totient is φ = 701117712.

The previous prime is 1420426613. The next prime is 1420426703. The reversal of 1420426642 is 2466240241.

It is a happy number.

It is a super-2 number, since 2×1420426642² = 4035223690606792328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294583 + ... + 299365.

It is an arithmetic number, because the mean of its divisors is an integer number (134872920).

Almost surely, 2^1420426642 is an apocalyptic number.

1420426642 is a deficient number, since it is larger than the sum of its proper divisors (737540078).

1420426642 is a wasteful number, since it uses less digits than its factorization.

1420426642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 1420426642 is about 37688.5478892461. The cubic root of 1420426642 is about 1124.1034218189.

Adding to 1420426642 its reverse (2466240241), we get a palindrome (3886666883).

The spelling of 1420426642 in words is "one billion, four hundred twenty million, four hundred twenty-six thousand, six hundred forty-two".