7730442 has 12 divisors (see below), whose sum is σ = 16749330. Its totient is φ = 2576808.

The previous prime is 7730431. The next prime is 7730453. The reversal of 7730442 is 2440377.

It is an interprime number because it is at equal distance from previous prime (7730431) and next prime (7730453).

It can be written as a sum of positive squares in only one way, i.e., 5716881 + 2013561 = 2391^2 + 1419^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214717 + ... + 214752.

Almost surely, 2^7730442 is an apocalyptic number.

7730442 is an abundant number, since it is smaller than the sum of its proper divisors (9018888).

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

7730442 is a wasteful number, since it uses less digits than its factorization.

7730442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429477 (or 429474 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 7730442 is about 2780.3672419305. The cubic root of 7730442 is about 197.7279704800.

The spelling of 7730442 in words is "seven million, seven hundred thirty thousand, four hundred forty-two".