1453720401 has 24 divisors (see below), whose sum is σ = 2401777664. Its totient is φ = 830010240.

The previous prime is 1453720399. The next prime is 1453720403. The reversal of 1453720401 is 1040273541.

1453720401 is a `hidden beast` number, since 1 + 453 + 7 + 204 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1453720399) and next prime (1453720403).

It is not a de Polignac number, because 1453720401 - 2¹ = 1453720399 is a prime.

It is a super-2 number, since 2×1453720401² = 4226606008567201602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1453720403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72816 + ... + 90606.

Almost surely, 2^1453720401 is an apocalyptic number.

It is an amenable number.

1453720401 is a deficient number, since it is larger than the sum of its proper divisors (948057263).

1453720401 is a wasteful number, since it uses less digits than its factorization.

1453720401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19101 (or 19098 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1453720401 is about 38127.6854923034. The cubic root of 1453720401 is about 1132.8184014751.

Adding to 1453720401 its reverse (1040273541), we get a palindrome (2493993942).

The spelling of 1453720401 in words is "one billion, four hundred fifty-three million, seven hundred twenty thousand, four hundred one".