742490481 has 4 divisors (see below), whose sum is σ = 989987312. Its totient is φ = 494993652.

The previous prime is 742490479. The next prime is 742490501. The reversal of 742490481 is 184094247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 742490481 - 2¹ = 742490479 is a prime.

It is a super-2 number, since 2×742490481² = 1102584228751222722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742490461) 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 3 ways as a sum of consecutive naturals, for example, 123748411 + ... + 123748416.

It is an arithmetic number, because the mean of its divisors is an integer number (247496828).

Almost surely, 2^742490481 is an apocalyptic number.

It is an amenable number.

742490481 is a deficient number, since it is larger than the sum of its proper divisors (247496831).

742490481 is a wasteful number, since it uses less digits than its factorization.

742490481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247496830.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 742490481 is about 27248.6785184163. The cubic root of 742490481 is about 905.5177408465.

The spelling of 742490481 in words is "seven hundred forty-two million, four hundred ninety thousand, four hundred eighty-one".