398411740 has 24 divisors (see below), whose sum is σ = 850383072. Its totient is φ = 156751680.

The previous prime is 398411737. The next prime is 398411749. The reversal of 398411740 is 47114893.

It is a self number, because there is not a number n which added to its sum of digits gives 398411740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398411749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162064 + ... + 164503.

It is an arithmetic number, because the mean of its divisors is an integer number (35432628).

Almost surely, 2^398411740 is an apocalyptic number.

It is an amenable number.

398411740 is an abundant number, since it is smaller than the sum of its proper divisors (451971332).

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

398411740 is a wasteful number, since it uses less digits than its factorization.

398411740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326637 (or 326635 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 398411740 is about 19960.2540063998. The cubic root of 398411740 is about 735.8298061693.

The spelling of 398411740 in words is "three hundred ninety-eight million, four hundred eleven thousand, seven hundred forty".