451147942 has 32 divisors (see below), whose sum is σ = 788520960. Its totient is φ = 189604800.

The previous prime is 451147909. The next prime is 451147943. The reversal of 451147942 is 249741154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451147943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156817 + ... + 159667.

It is an arithmetic number, because the mean of its divisors is an integer number (24641280).

Almost surely, 2^451147942 is an apocalyptic number.

451147942 is a deficient number, since it is larger than the sum of its proper divisors (337373018).

451147942 is a wasteful number, since it uses less digits than its factorization.

451147942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076.

The product of its digits is 40320, while the sum is 37.

The square root of 451147942 is about 21240.2434543486. The cubic root of 451147942 is about 766.9604930052.

The spelling of 451147942 in words is "four hundred fifty-one million, one hundred forty-seven thousand, nine hundred forty-two".