403740740 has 48 divisors (see below), whose sum is σ = 917197680. Its totient is φ = 148400640.

The previous prime is 403740713. The next prime is 403740749. The reversal of 403740740 is 47047304.

It can be written as a sum of positive squares in 8 ways, for example, as 614656 + 403126084 = 784^2 + 20078^2 .

It is not an unprimeable number, because it can be changed into a prime (403740749) 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, 56150 + ... + 62930.

It is an arithmetic number, because the mean of its divisors is an integer number (19108285).

Almost surely, 2^403740740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403740740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458598840).

403740740 is an abundant number, since it is smaller than the sum of its proper divisors (513456940).

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

403740740 is a wasteful number, since it uses less digits than its factorization.

403740740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032 (or 7030 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 403740740 is about 20093.3008736743. The cubic root of 403740740 is about 739.0960108124.

The spelling of 403740740 in words is "four hundred three million, seven hundred forty thousand, seven hundred forty".