1497943680 has 64 divisors (see below), whose sum is σ = 4774701600. Its totient is φ = 399451136.

The previous prime is 1497943673. The next prime is 1497943687. The reversal of 1497943680 is 863497941.

It is an interprime number because it is at equal distance from previous prime (1497943673) and next prime (1497943687).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1497943687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388170 + ... + 392009.

Almost surely, 2^1497943680 is an apocalyptic number.

1497943680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1497943680 is an abundant number, since it is smaller than the sum of its proper divisors (3276757920).

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

1497943680 is an equidigital number, since it uses as much as digits as its factorization.

1497943680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780201 (or 780189 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 1497943680 is about 38703.2773806043. The cubic root of 1497943680 is about 1144.1909147203.

The spelling of 1497943680 in words is "one billion, four hundred ninety-seven million, nine hundred forty-three thousand, six hundred eighty".