402803145 has 32 divisors (see below), whose sum is σ = 732758400. Its totient is φ = 209829312.

The previous prime is 402803131. The next prime is 402803161. The reversal of 402803145 is 541308204.

It is not a de Polignac number, because 402803145 - 2⁶ = 402803081 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28890 + ... + 40499.

It is an arithmetic number, because the mean of its divisors is an integer number (22898700).

Almost surely, 2^402803145 is an apocalyptic number.

402803145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

402803145 is a deficient number, since it is larger than the sum of its proper divisors (329955255).

402803145 is a wasteful number, since it uses less digits than its factorization.

402803145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69446 (or 69440 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 402803145 is about 20069.9562779793. The cubic root of 402803145 is about 738.5234405365.

The spelling of 402803145 in words is "four hundred two million, eight hundred three thousand, one hundred forty-five".