1420909542 has 48 divisors (see below), whose sum is σ = 3378040848. Its totient is φ = 428950080.

The previous prime is 1420909517. The next prime is 1420909559. The reversal of 1420909542 is 2459090241.

1420909542 is a `hidden beast` number, since 1 + 4 + 20 + 90 + 9 + 542 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1420909497 and 1420909506.

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 23 ways as a sum of consecutive naturals, for example, 44884 + ... + 69687.

It is an arithmetic number, because the mean of its divisors is an integer number (70375851).

Almost surely, 2^1420909542 is an apocalyptic number.

1420909542 is an abundant number, since it is smaller than the sum of its proper divisors (1957131306).

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

1420909542 is a wasteful number, since it uses less digits than its factorization.

1420909542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114645 (or 114642 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1420909542 is about 37694.9538002104. The cubic root of 1420909542 is about 1124.2307938875.

Adding to 1420909542 its reverse (2459090241), we get a palindrome (3879999783).

The spelling of 1420909542 in words is "one billion, four hundred twenty million, nine hundred nine thousand, five hundred forty-two".