1493402306 has 16 divisors (see below), whose sum is σ = 2489859648. Its totient is φ = 666010800.

The previous prime is 1493402303. The next prime is 1493402353. The reversal of 1493402306 is 6032043941.

It is a super-2 number, since 2×1493402306² = 4460500895132235272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1493402303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639230 + ... + 641561.

It is an arithmetic number, because the mean of its divisors is an integer number (155616228).

Almost surely, 2^1493402306 is an apocalyptic number.

1493402306 is a deficient number, since it is larger than the sum of its proper divisors (996457342).

1493402306 is a wasteful number, since it uses less digits than its factorization.

1493402306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280857.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1493402306 is about 38644.5637315263. The cubic root of 1493402306 is about 1143.0334482156.

The spelling of 1493402306 in words is "one billion, four hundred ninety-three million, four hundred two thousand, three hundred six".