1493336640 has 224 divisors, whose sum is σ = 5056266240. Its totient is φ = 372545536.

The previous prime is 1493336629. The next prime is 1493336657. The reversal of 1493336640 is 466333941.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1037041 + ... + 1038479.

Almost surely, 2^1493336640 is an apocalyptic number.

1493336640 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 1493336640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528133120).

1493336640 is an abundant number, since it is smaller than the sum of its proper divisors (3562929600).

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

1493336640 is a wasteful number, since it uses less digits than its factorization.

1493336640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 1493336640 is about 38643.7141072128. The cubic root of 1493336640 is about 1143.0166946291.

The spelling of 1493336640 in words is "one billion, four hundred ninety-three million, three hundred thirty-six thousand, six hundred forty".