1453021842 has 8 divisors (see below), whose sum is σ = 2906043696. Its totient is φ = 484340612.

The previous prime is 1453021819. The next prime is 1453021897. The reversal of 1453021842 is 2481203541.

It is a sphenic number, since it is the product of 3 distinct primes.

1453021842 is an admirable number.

It is a super-4 number, since 4×1453021842⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121085148 + ... + 121085159.

It is an arithmetic number, because the mean of its divisors is an integer number (363255462).

Almost surely, 2^1453021842 is an apocalyptic number.

1453021842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1453021842 is a wasteful number, since it uses less digits than its factorization.

1453021842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242170312.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1453021842 is about 38118.5236072962. The cubic root of 1453021842 is about 1132.6369206168.

The spelling of 1453021842 in words is "one billion, four hundred fifty-three million, twenty-one thousand, eight hundred forty-two".