897402740416 has 224 divisors, whose sum is σ = 2253491251200. Its totient is φ = 345115275264.

The previous prime is 897402740389. The next prime is 897402740417. The reversal of 897402740416 is 614047204798.

897402740416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×897402740416² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (897402740417) 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, 40774471 + ... + 40796473.

It is an arithmetic number, because the mean of its divisors is an integer number (10060228800).

Almost surely, 2^897402740416 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 897402740416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126745625600).

897402740416 is an abundant number, since it is smaller than the sum of its proper divisors (1356088510784).

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

897402740416 is a wasteful number, since it uses less digits than its factorization.

897402740416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22231 (or 22221 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 897402740416 in words is "eight hundred ninety-seven billion, four hundred two million, seven hundred forty thousand, four hundred sixteen".