454006402 has 4 divisors (see below), whose sum is σ = 681009606. Its totient is φ = 227003200.

The previous prime is 454006381. The next prime is 454006409. The reversal of 454006402 is 204600454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 314033841 + 139972561 = 17721^2 + 11831^2 .

It is a super-2 number, since 2×454006402² = 412243626113971208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (454006409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113501599 + ... + 113501602.

Almost surely, 2^454006402 is an apocalyptic number.

454006402 is a deficient number, since it is larger than the sum of its proper divisors (227003204).

454006402 is a wasteful number, since it uses less digits than its factorization.

454006402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227003203.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 454006402 is about 21307.4259825067. The cubic root of 454006402 is about 768.5768969577.

Adding to 454006402 its reverse (204600454), we get a palindrome (658606856).

The spelling of 454006402 in words is "four hundred fifty-four million, six thousand, four hundred two".