1453036640 has 96 divisors (see below), whose sum is σ = 3753540000. Its totient is φ = 527155200.

The previous prime is 1453036577. The next prime is 1453036643. The reversal of 1453036640 is 466303541.

It is a super-2 number, since 2×1453036640² = 4222630954364979200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1453036597 and 1453036606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453036643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162736 + ... + 1163984.

It is an arithmetic number, because the mean of its divisors is an integer number (39099375).

Almost surely, 2^1453036640 is an apocalyptic number.

1453036640 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 1453036640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876770000).

1453036640 is an abundant number, since it is smaller than the sum of its proper divisors (2300503360).

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

1453036640 is a wasteful number, since it uses less digits than its factorization.

1453036640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1453036640 is about 38118.7177119063. The cubic root of 1453036640 is about 1132.6407656392.

The spelling of 1453036640 in words is "one billion, four hundred fifty-three million, thirty-six thousand, six hundred forty".