1453201620 has 96 divisors (see below), whose sum is σ = 4427367168. Its totient is φ = 354004992.

The previous prime is 1453201591. The next prime is 1453201637. The reversal of 1453201620 is 261023541.

It is a super-2 number, since 2×1453201620² = 4223589896741248800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66057 + ... + 85263.

It is an arithmetic number, because the mean of its divisors is an integer number (46118408).

Almost surely, 2^1453201620 is an apocalyptic number.

1453201620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1453201620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213683584).

1453201620 is an abundant number, since it is smaller than the sum of its proper divisors (2974165548).

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

1453201620 is a wasteful number, since it uses less digits than its factorization.

1453201620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19329 (or 19327 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1453201620 is about 38120.8816792057. The cubic root of 1453201620 is about 1132.6836312712.

The spelling of 1453201620 in words is "one billion, four hundred fifty-three million, two hundred one thousand, six hundred twenty".