742510 has 16 divisors (see below), whose sum is σ = 1369872. Its totient is φ = 289600.

The previous prime is 742507. The next prime is 742513. The reversal of 742510 is 15247.

It is an interprime number because it is at equal distance from previous prime (742507) and next prime (742513).

It is a super-2 number, since 2×742510² = 1102642200200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742513) 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, 496 + ... + 1315.

It is an arithmetic number, because the mean of its divisors is an integer number (85617).

2⁷⁴²⁵¹⁰ is an apocalyptic number.

742510 is a deficient number, since it is larger than the sum of its proper divisors (627362).

742510 is a wasteful number, since it uses less digits than its factorization.

742510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 742510 is about 861.6901995497. The cubic root of 742510 is about 90.5525675694.

Adding to 742510 its reverse (15247), we get a palindrome (757757).

The spelling of 742510 in words is "seven hundred forty-two thousand, five hundred ten".