742430208 has 80 divisors (see below), whose sum is σ = 2130082416. Its totient is φ = 228433920.

The previous prime is 742430177. The next prime is 742430219. The reversal of 742430208 is 802034247.

It is a super-2 number, since 2×742430208² = 1102405227501846528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378 + ... + 38558.

Almost surely, 2^742430208 is an apocalyptic number.

742430208 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742430208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065041208).

742430208 is an abundant number, since it is smaller than the sum of its proper divisors (1387652208).

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

742430208 is a wasteful number, since it uses less digits than its factorization.

742430208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37215 (or 37199 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 742430208 is about 27247.5725157306. The cubic root of 742430208 is about 905.4932378398.

The spelling of 742430208 in words is "seven hundred forty-two million, four hundred thirty thousand, two hundred eight".