1452142020 has 48 divisors (see below), whose sum is σ = 4646855808. Its totient is φ = 331918080.

The previous prime is 1452141991. The next prime is 1452142063. The reversal of 1452142020 is 202412541.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 1728321 + ... + 1729160.

It is an arithmetic number, because the mean of its divisors is an integer number (96809496).

Almost surely, 2^1452142020 is an apocalyptic number.

1452142020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452142020 is an abundant number, since it is smaller than the sum of its proper divisors (3194713788).

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

1452142020 is a wasteful number, since it uses less digits than its factorization.

1452142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457500 (or 3457498 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1452142020 is about 38106.9812501594. The cubic root of 1452142020 is about 1132.4082660859.

Adding to 1452142020 its reverse (202412541), we get a palindrome (1654554561).

The spelling of 1452142020 in words is "one billion, four hundred fifty-two million, one hundred forty-two thousand, twenty".