451403902 has 4 divisors (see below), whose sum is σ = 677105856. Its totient is φ = 225701950.

The previous prime is 451403863. The next prime is 451403917. The reversal of 451403902 is 209304154.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112850974 + ... + 112850977.

It is an arithmetic number, because the mean of its divisors is an integer number (169276464).

Almost surely, 2^451403902 is an apocalyptic number.

451403902 is a deficient number, since it is larger than the sum of its proper divisors (225701954).

451403902 is a wasteful number, since it uses less digits than its factorization.

451403902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225701953.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 451403902 is about 21246.2679546315. The cubic root of 451403902 is about 767.1055112836.

The spelling of 451403902 in words is "four hundred fifty-one million, four hundred three thousand, nine hundred two".