454040402 has 4 divisors (see below), whose sum is σ = 681060606. Its totient is φ = 227020200.

The previous prime is 454040383. The next prime is 454040417. The reversal of 454040402 is 204040454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204040454 = 2 ⋅102020227.

It can be written as a sum of positive squares in only one way, i.e., 414488881 + 39551521 = 20359^2 + 6289^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113510099 + ... + 113510102.

Almost surely, 2^454040402 is an apocalyptic number.

454040402 is a deficient number, since it is larger than the sum of its proper divisors (227020204).

454040402 is a wasteful number, since it uses less digits than its factorization.

454040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227020203.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 454040402 is about 21308.2238114771. The cubic root of 454040402 is about 768.5960824156.

Adding to 454040402 its reverse (204040454), we get a palindrome (658080856).

The spelling of 454040402 in words is "four hundred fifty-four million, forty thousand, four hundred two".