740722420 has 48 divisors (see below), whose sum is σ = 1576931328. Its totient is φ = 292239360.

The previous prime is 740722363. The next prime is 740722427. The reversal of 740722420 is 24227047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740722427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489465 + ... + 490975.

It is an arithmetic number, because the mean of its divisors is an integer number (32852736).

Almost surely, 2^740722420 is an apocalyptic number.

It is an amenable number.

740722420 is an abundant number, since it is smaller than the sum of its proper divisors (836208908).

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

740722420 is a wasteful number, since it uses less digits than its factorization.

740722420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 740722420 is about 27216.2161220108. The cubic root of 740722420 is about 904.7984126156.

Adding to 740722420 its reverse (24227047), we get a palindrome (764949467).

The spelling of 740722420 in words is "seven hundred forty million, seven hundred twenty-two thousand, four hundred twenty".