740122820 has 24 divisors (see below), whose sum is σ = 1554769944. Its totient is φ = 295951616.

The previous prime is 740122813. The next prime is 740122847. The reversal of 740122820 is 28221047.

It can be written as a sum of positive squares in 4 ways, for example, as 27019204 + 713103616 = 5198^2 + 26704^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 740122820.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111104 + ... + 117576.

It is an arithmetic number, because the mean of its divisors is an integer number (64782081).

Almost surely, 2^740122820 is an apocalyptic number.

It is an amenable number.

740122820 is an abundant number, since it is smaller than the sum of its proper divisors (814647124).

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

740122820 is a wasteful number, since it uses less digits than its factorization.

740122820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199 (or 12197 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 740122820 is about 27205.1984003058. The cubic root of 740122820 is about 904.5542079648.

Adding to 740122820 its reverse (28221047), we get a palindrome (768343867).

The spelling of 740122820 in words is "seven hundred forty million, one hundred twenty-two thousand, eight hundred twenty".