271398402 has 54 divisors (see below), whose sum is σ = 648183081. Its totient is φ = 82008960.

The previous prime is 271398401. The next prime is 271398403. The reversal of 271398402 is 204893172.

It is an interprime number because it is at equal distance from previous prime (271398401) and next prime (271398403).

It can be written as a sum of positive squares in 2 ways, for example, as 268992801 + 2405601 = 16401^2 + 1551^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11649.

It is not an unprimeable number, because it can be changed into a prime (271398401) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 768658 + ... + 769010.

Almost surely, 2^271398402 is an apocalyptic number.

271398402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 271398402

271398402 is an abundant number, since it is smaller than the sum of its proper divisors (376784679).

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

271398402 is a wasteful number, since it uses less digits than its factorization.

271398402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 271398402 is about 16474.1737880842. The cubic root of 271398402 is about 647.4443253015. Note that the first 3 decimals are identical.

The spelling of 271398402 in words is "two hundred seventy-one million, three hundred ninety-eight thousand, four hundred two".