742681403 has 4 divisors (see below), whose sum is σ = 743542848. Its totient is φ = 741819960.

The previous prime is 742681393. The next prime is 742681409. The reversal of 742681403 is 304186247.

742681403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742681403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742681409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429428 + ... + 431153.

It is an arithmetic number, because the mean of its divisors is an integer number (185885712).

Almost surely, 2^742681403 is an apocalyptic number.

742681403 is a deficient number, since it is larger than the sum of its proper divisors (861445).

742681403 is an equidigital number, since it uses as much as digits as its factorization.

742681403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861444.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 742681403 is about 27252.1816190924. The cubic root of 742681403 is about 905.5953483249.

The spelling of 742681403 in words is "seven hundred forty-two million, six hundred eighty-one thousand, four hundred three".