742323456 has 108 divisors (see below), whose sum is σ = 2446112032. Its totient is φ = 212087808.

The previous prime is 742323431. The next prime is 742323473. The reversal of 742323456 is 654323247.

It is a super-2 number, since 2×742323456² = 1102088226655567872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 742323456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6886 + ... + 39141.

Almost surely, 2^742323456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742323456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223056016).

742323456 is an abundant number, since it is smaller than the sum of its proper divisors (1703788576).

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

742323456 is a wasteful number, since it uses less digits than its factorization.

742323456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46056 (or 46039 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 742323456 is about 27245.6135185097. The cubic root of 742323456 is about 905.4498362978.

The spelling of 742323456 in words is "seven hundred forty-two million, three hundred twenty-three thousand, four hundred fifty-six".