1421523042 has 32 divisors (see below), whose sum is σ = 2940240384. Its totient is φ = 457699200.

The previous prime is 1421522933. The next prime is 1421523043. The reversal of 1421523042 is 2403251241.

It is not an unprimeable number, because it can be changed into a prime (1421523043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96742 + ... + 110462.

It is an arithmetic number, because the mean of its divisors is an integer number (91882512).

Almost surely, 2^1421523042 is an apocalyptic number.

1421523042 is an abundant number, since it is smaller than the sum of its proper divisors (1518717342).

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

1421523042 is a wasteful number, since it uses less digits than its factorization.

1421523042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14314.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1421523042 is about 37703.0906160224. The cubic root of 1421523042 is about 1124.3925720374.

Adding to 1421523042 its reverse (2403251241), we get a palindrome (3824774283).

The spelling of 1421523042 in words is "one billion, four hundred twenty-one million, five hundred twenty-three thousand, forty-two".