1453493780 has 24 divisors (see below), whose sum is σ = 3053178240. Its totient is φ = 581237280.

The previous prime is 1453493771. The next prime is 1453493813. The reversal of 1453493780 is 873943541.

It is a super-2 number, since 2×1453493780² = 4225288336997376800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 87545 + ... + 102815.

It is an arithmetic number, because the mean of its divisors is an integer number (127215760).

Almost surely, 2^1453493780 is an apocalyptic number.

1453493780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453493780 is an abundant number, since it is smaller than the sum of its proper divisors (1599684460).

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

1453493780 is a wasteful number, since it uses less digits than its factorization.

1453493780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20039 (or 20037 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1453493780 is about 38124.7135071203. The cubic root of 1453493780 is about 1132.7595332590.

The spelling of 1453493780 in words is "one billion, four hundred fifty-three million, four hundred ninety-three thousand, seven hundred eighty".