46420866 has 48 divisors (see below), whose sum is σ = 105565824. Its totient is φ = 14725152.

The previous prime is 46420861. The next prime is 46420879. The reversal of 46420866 is 66802464.

It is a happy number.

46420866 is a `hidden beast` number, since 4 + 642 + 0 + 8 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 46420866.

It is not an unprimeable number, because it can be changed into a prime (46420861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30561 + ... + 32043.

It is an arithmetic number, because the mean of its divisors is an integer number (2199288).

Almost surely, 2^46420866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46420866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52782912).

46420866 is an abundant number, since it is smaller than the sum of its proper divisors (59144958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46420866 is a wasteful number, since it uses less digits than its factorization.

46420866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 46420866 is about 6813.2859913554. The cubic root of 46420866 is about 359.3942126691.

The spelling of 46420866 in words is "forty-six million, four hundred twenty thousand, eight hundred sixty-six".