1452457980 has 120 divisors (see below), whose sum is σ = 4566481920. Its totient is φ = 386467200.

The previous prime is 1452457969. The next prime is 1452457991. The reversal of 1452457980 is 897542541.

It is an interprime number because it is at equal distance from previous prime (1452457969) and next prime (1452457991).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1134981 + ... + 1136259.

It is an arithmetic number, because the mean of its divisors is an integer number (38054016).

Almost surely, 2^1452457980 is an apocalyptic number.

1452457980 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 1452457980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283240960).

1452457980 is an abundant number, since it is smaller than the sum of its proper divisors (3114023940).

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

1452457980 is a wasteful number, since it uses less digits than its factorization.

1452457980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 1452457980 is about 38111.1267217331. The cubic root of 1452457980 is about 1132.4903906908.

The spelling of 1452457980 in words is "one billion, four hundred fifty-two million, four hundred fifty-seven thousand, nine hundred eighty".