402040545 has 8 divisors (see below), whose sum is σ = 643264896. Its totient is φ = 214421616.

The previous prime is 402040537. The next prime is 402040567. The reversal of 402040545 is 545040204.

402040545 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402040545 - 2³ = 402040537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13401337 + ... + 13401366.

It is an arithmetic number, because the mean of its divisors is an integer number (80408112).

Almost surely, 2^402040545 is an apocalyptic number.

It is an amenable number.

402040545 is a deficient number, since it is larger than the sum of its proper divisors (241224351).

402040545 is a wasteful number, since it uses less digits than its factorization.

402040545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26802711.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 402040545 is about 20050.9487306711. The cubic root of 402040545 is about 738.0570805800.

Adding to 402040545 its reverse (545040204), we get a palindrome (947080749).

The spelling of 402040545 in words is "four hundred two million, forty thousand, five hundred forty-five".