740443620 has 96 divisors (see below), whose sum is σ = 2408345856. Its totient is φ = 166464000.

The previous prime is 740443601. The next prime is 740443621. The reversal of 740443620 is 26344047.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (740443621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11170 + ... + 40070.

It is an arithmetic number, because the mean of its divisors is an integer number (25086936).

Almost surely, 2^740443620 is an apocalyptic number.

740443620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740443620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204172928).

740443620 is an abundant number, since it is smaller than the sum of its proper divisors (1667902236).

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

740443620 is a wasteful number, since it uses less digits than its factorization.

740443620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28981 (or 28979 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 740443620 is about 27211.0936935655. The cubic root of 740443620 is about 904.6848795537.

Adding to 740443620 its reverse (26344047), we get a palindrome (766787667).

The spelling of 740443620 in words is "seven hundred forty million, four hundred forty-three thousand, six hundred twenty".