1453311840 has 48 divisors (see below), whose sum is σ = 4577933808. Its totient is φ = 387549696.

The previous prime is 1453311799. The next prime is 1453311857. The reversal of 1453311840 is 481133541.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1453311840² = 4224230608568371200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1453311798 and 1453311807.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1513387 + ... + 1514346.

It is an arithmetic number, because the mean of its divisors is an integer number (95373621).

Almost surely, 2^1453311840 is an apocalyptic number.

1453311840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453311840 is an abundant number, since it is smaller than the sum of its proper divisors (3124621968).

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

1453311840 is a wasteful number, since it uses less digits than its factorization.

1453311840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027751 (or 3027743 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1453311840 is about 38122.3273161542. The cubic root of 1453311840 is about 1132.7122671769.

The spelling of 1453311840 in words is "one billion, four hundred fifty-three million, three hundred eleven thousand, eight hundred forty".