1493778432 has 60 divisors (see below), whose sum is σ = 3983418656. Its totient is φ = 497909760.

The previous prime is 1493778421. The next prime is 1493778463. The reversal of 1493778432 is 2348773941.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33957 + ... + 64347.

Almost surely, 2^1493778432 is an apocalyptic number.

1493778432 is a gapful number since it is divisible by the number (12) 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 1493778432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1991709328).

1493778432 is an abundant number, since it is smaller than the sum of its proper divisors (2489640224).

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

1493778432 is an frugal number, since it uses more digits than its factorization.

1493778432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30422 (or 30396 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 1493778432 is about 38649.4299052392. The cubic root of 1493778432 is about 1143.1294010407.

The spelling of 1493778432 in words is "one billion, four hundred ninety-three million, seven hundred seventy-eight thousand, four hundred thirty-two".