402145534 has 32 divisors (see below), whose sum is σ = 705024000. Its totient is φ = 168473760.

The previous prime is 402145493. The next prime is 402145537. The reversal of 402145534 is 435541204.

It is a super-2 number, since 2×402145534² = 323442061032290312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402145537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156492 + ... + 159040.

It is an arithmetic number, because the mean of its divisors is an integer number (22032000).

Almost surely, 2^402145534 is an apocalyptic number.

402145534 is a deficient number, since it is larger than the sum of its proper divisors (302878466).

402145534 is a wasteful number, since it uses less digits than its factorization.

402145534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 402145534 is about 20053.5666154428. The cubic root of 402145534 is about 738.1213204779.

Adding to 402145534 its reverse (435541204), we get a palindrome (837686738).

The spelling of 402145534 in words is "four hundred two million, one hundred forty-five thousand, five hundred thirty-four".