742468221 has 96 divisors (see below), whose sum is σ = 1297739520. Its totient is φ = 418176000.

The previous prime is 742468211. The next prime is 742468231. The reversal of 742468221 is 122864247.

742468221 is a `hidden beast` number, since 7 + 424 + 6 + 8 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (742468211) and next prime (742468231).

It is not a de Polignac number, because 742468221 - 2⁶ = 742468157 is a prime.

Its product of digits (43008) is a multiple of the sum of its prime factors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742468211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3080661 + ... + 3080901.

It is an arithmetic number, because the mean of its divisors is an integer number (13518120).

Almost surely, 2^742468221 is an apocalyptic number.

It is an amenable number.

742468221 is a deficient number, since it is larger than the sum of its proper divisors (555271299).

742468221 is a wasteful number, since it uses less digits than its factorization.

742468221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 319 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 742468221 is about 27248.2700551796. The cubic root of 742468221 is about 905.5086915604.

The spelling of 742468221 in words is "seven hundred forty-two million, four hundred sixty-eight thousand, two hundred twenty-one".