742670784 has 168 divisors, whose sum is σ = 2271776000. Its totient is φ = 231289344.

The previous prime is 742670783. The next prime is 742670809. The reversal of 742670784 is 487076247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742670783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 864147 + ... + 865005.

Almost surely, 2^742670784 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 742670784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135888000).

742670784 is an abundant number, since it is smaller than the sum of its proper divisors (1529105216).

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

742670784 is a wasteful number, since it uses less digits than its factorization.

742670784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 742670784 is about 27251.9867899572. The cubic root of 742670784 is about 905.5910321795.

It can be divided in two parts, 7426 and 70784, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 742670784 in words is "seven hundred forty-two million, six hundred seventy thousand, seven hundred eighty-four".