428461894 has 64 divisors (see below), whose sum is σ = 821145600. Its totient is φ = 163440288.

The previous prime is 428461879. The next prime is 428461903. The reversal of 428461894 is 498164824.

It is a super-2 number, since 2×428461894² = 367159189220134472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360369 + ... + 361555.

It is an arithmetic number, because the mean of its divisors is an integer number (12830400).

Almost surely, 2^428461894 is an apocalyptic number.

428461894 is a deficient number, since it is larger than the sum of its proper divisors (392683706).

428461894 is a wasteful number, since it uses less digits than its factorization.

428461894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297.

The product of its digits is 442368, while the sum is 46.

The square root of 428461894 is about 20699.3210999781. The cubic root of 428461894 is about 753.8832041931.

The spelling of 428461894 in words is "four hundred twenty-eight million, four hundred sixty-one thousand, eight hundred ninety-four".