1420242645 has 32 divisors (see below), whose sum is σ = 2436549120. Its totient is φ = 703872000.

The previous prime is 1420242619. The next prime is 1420242671. The reversal of 1420242645 is 5462420241.

It is an interprime number because it is at equal distance from previous prime (1420242619) and next prime (1420242671).

It is not a de Polignac number, because 1420242645 - 2⁶ = 1420242581 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 15106 + ... + 55395.

It is an arithmetic number, because the mean of its divisors is an integer number (76142160).

Almost surely, 2^1420242645 is an apocalyptic number.

1420242645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420242645 is a deficient number, since it is larger than the sum of its proper divisors (1016306475).

1420242645 is a wasteful number, since it uses less digits than its factorization.

1420242645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70605.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 1420242645 is about 37686.1067901687. The cubic root of 1420242645 is about 1124.0548822739.

Adding to 1420242645 its reverse (5462420241), we get a palindrome (6882662886).

The spelling of 1420242645 in words is "one billion, four hundred twenty million, two hundred forty-two thousand, six hundred forty-five".