740221992 has 48 divisors (see below), whose sum is σ = 2006140500. Its totient is φ = 246571776.

The previous prime is 740221967. The next prime is 740221997. The reversal of 740221992 is 299122047.

It can be written as a sum of positive squares in 2 ways, for example, as 653620356 + 86601636 = 25566^2 + 9306^2 .

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

It is not an unprimeable number, because it can be changed into a prime (740221997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146484 + ... + 151452.

Almost surely, 2^740221992 is an apocalyptic number.

740221992 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

740221992 is an abundant number, since it is smaller than the sum of its proper divisors (1265918508).

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

740221992 is a wasteful number, since it uses less digits than its factorization.

740221992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050 (or 7043 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 740221992 is about 27207.0210056154. The cubic root of 740221992 is about 904.5946077656.

The spelling of 740221992 in words is "seven hundred forty million, two hundred twenty-one thousand, nine hundred ninety-two".