420281854 has 16 divisors (see below), whose sum is σ = 669438000. Its totient is φ = 197207424.

The previous prime is 420281749. The next prime is 420281867. The reversal of 420281854 is 458182024.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5844 + ... + 29575.

It is an arithmetic number, because the mean of its divisors is an integer number (41839875).

Almost surely, 2^420281854 is an apocalyptic number.

420281854 is a deficient number, since it is larger than the sum of its proper divisors (249156146).

420281854 is a wasteful number, since it uses less digits than its factorization.

420281854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35787.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 420281854 is about 20500.7769121075. The cubic root of 420281854 is about 749.0547225828.

The spelling of 420281854 in words is "four hundred twenty million, two hundred eighty-one thousand, eight hundred fifty-four".