402729741 has 12 divisors (see below), whose sum is σ = 587719132. Its totient is φ = 265718016.

The previous prime is 402729739. The next prime is 402729791. The reversal of 402729741 is 147927204.

It can be written as a sum of positive squares in 2 ways, for example, as 84107241 + 318622500 = 9171^2 + 17850^2 .

It is not a de Polignac number, because 402729741 - 2¹ = 402729739 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402729696 and 402729705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402729731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229786 + ... + 231531.

Almost surely, 2^402729741 is an apocalyptic number.

It is an amenable number.

402729741 is a deficient number, since it is larger than the sum of its proper divisors (184989391).

402729741 is a wasteful number, since it uses less digits than its factorization.

402729741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461420 (or 461417 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 402729741 is about 20068.1274911238. The cubic root of 402729741 is about 738.4785767127.

The spelling of 402729741 in words is "four hundred two million, seven hundred twenty-nine thousand, seven hundred forty-one".