45451402 has 8 divisors (see below), whose sum is σ = 68257476. Its totient is φ = 22698912.

The previous prime is 45451361. The next prime is 45451403. The reversal of 45451402 is 20415454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42758521 + 2692881 = 6539^2 + 1641^2 .

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

It is not an unprimeable number, because it can be changed into a prime (45451403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11203 + ... + 14710.

Almost surely, 2^45451402 is an apocalyptic number.

45451402 is a deficient number, since it is larger than the sum of its proper divisors (22806074).

45451402 is a wasteful number, since it uses less digits than its factorization.

45451402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26792.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 45451402 is about 6741.7654957733. The cubic root of 45451402 is about 356.8747006969.

Adding to 45451402 its reverse (20415454), we get a palindrome (65866856).

The spelling of 45451402 in words is "forty-five million, four hundred fifty-one thousand, four hundred two".