734667840 has 224 divisors, whose sum is σ = 2705160960. Its totient is φ = 187342848.

The previous prime is 734667811. The next prime is 734667859. The reversal of 734667840 is 48766437.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196872 + ... + 200568.

Almost surely, 2^734667840 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 734667840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1352580480).

734667840 is an abundant number, since it is smaller than the sum of its proper divisors (1970493120).

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

734667840 is a wasteful number, since it uses less digits than its factorization.

734667840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746 (or 3730 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 734667840 is about 27104.7567781008. The cubic root of 734667840 is about 902.3264256448.

The spelling of 734667840 in words is "seven hundred thirty-four million, six hundred sixty-seven thousand, eight hundred forty".