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402535481 is a prime number
BaseRepresentation
bin10111111111100…
…011010000111001
31001001102220212112
4113333203100321
51311022113411
6103535422105
712655331555
oct2777432071
91031386775
10402535481
11197247957
12b2984935
136551b69a
143b664865
1525514b8b
hex17fe3439

402535481 has 2 divisors, whose sum is σ = 402535482. Its totient is φ = 402535480.

The previous prime is 402535451. The next prime is 402535559. The reversal of 402535481 is 184535204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340771600 + 61763881 = 18460^2 + 7859^2 .

It is a cyclic number.

It is not a de Polignac number, because 402535481 - 218 = 402273337 is a prime.

It is a super-2 number, since 2×4025354812 = 324069626927802722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402535411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201267740 + 201267741.

It is an arithmetic number, because the mean of its divisors is an integer number (201267741).

Almost surely, 2402535481 is an apocalyptic number.

It is an amenable number.

402535481 is a deficient number, since it is larger than the sum of its proper divisors (1).

402535481 is an equidigital number, since it uses as much as digits as its factorization.

402535481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 402535481 is about 20063.2868942255. The cubic root of 402535481 is about 738.3598205464.

The spelling of 402535481 in words is "four hundred two million, five hundred thirty-five thousand, four hundred eighty-one".