402545430 has 64 divisors (see below), whose sum is σ = 1226810880. Its totient is φ = 92009952.

The previous prime is 402545413. The next prime is 402545443. The reversal of 402545430 is 34545204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 402545394 and 402545403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104604 + ... + 108383.

It is an arithmetic number, because the mean of its divisors is an integer number (19168920).

Almost surely, 2^402545430 is an apocalyptic number.

402545430 is an abundant number, since it is smaller than the sum of its proper divisors (824265450).

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

402545430 is a wasteful number, since it uses less digits than its factorization.

402545430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213010 (or 213004 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 402545430 is about 20063.5348331245. The cubic root of 402545430 is about 738.3659035558.

It can be divided in two parts, 4025 and 45430, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 402545430 in words is "four hundred two million, five hundred forty-five thousand, four hundred thirty".