734851890 has 48 divisors (see below), whose sum is σ = 1946676888. Its totient is φ = 192261888.

The previous prime is 734851889. The next prime is 734851951. The reversal of 734851890 is 98158437.

734851890 is a `hidden beast` number, since 7 + 3 + 48 + 518 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 590635809 + 144216081 = 24303^2 + 12009^2 .

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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72259 + ... + 81798.

Almost surely, 2^734851890 is an apocalyptic number.

734851890 is an abundant number, since it is smaller than the sum of its proper divisors (1211824998).

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

734851890 is a wasteful number, since it uses less digits than its factorization.

734851890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154123 (or 154120 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 734851890 is about 27108.1517260030. The cubic root of 734851890 is about 902.4017700400.

The spelling of 734851890 in words is "seven hundred thirty-four million, eight hundred fifty-one thousand, eight hundred ninety".