402154745 has 16 divisors (see below), whose sum is σ = 504092160. Its totient is φ = 307602624.

The previous prime is 402154693. The next prime is 402154757. The reversal of 402154745 is 547451204.

It is a cyclic number.

It is not a de Polignac number, because 402154745 - 2¹⁰ = 402153721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1472 + ... + 28398.

It is an arithmetic number, because the mean of its divisors is an integer number (31505760).

Almost surely, 2^402154745 is an apocalyptic number.

It is an amenable number.

402154745 is a deficient number, since it is larger than the sum of its proper divisors (101937415).

402154745 is a wasteful number, since it uses less digits than its factorization.

402154745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27064.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 402154745 is about 20053.7962740225. The cubic root of 402154745 is about 738.1269559034.

The spelling of 402154745 in words is "four hundred two million, one hundred fifty-four thousand, seven hundred forty-five".