545428402 has 12 divisors (see below), whose sum is σ = 863470206. Its totient is φ = 258360480.

The previous prime is 545428399. The next prime is 545428423. The reversal of 545428402 is 204824545.

It can be written as a sum of positive squares in only one way, i.e., 545269201 + 159201 = 23351^2 + 399^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376999 + ... + 378442.

Almost surely, 2^545428402 is an apocalyptic number.

545428402 is a deficient number, since it is larger than the sum of its proper divisors (318041804).

545428402 is a wasteful number, since it uses less digits than its factorization.

545428402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755481 (or 755462 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

The square root of 545428402 is about 23354.4086202156. The cubic root of 545428402 is about 817.0448866631.

It can be divided in two parts, 5454 and 28402, that added together give a square (33856 = 184²).

The spelling of 545428402 in words is "five hundred forty-five million, four hundred twenty-eight thousand, four hundred two".