45978786 has 32 divisors (see below), whose sum is σ = 116772480. Its totient is φ = 13136688.

The previous prime is 45978781. The next prime is 45978791. The reversal of 45978786 is 68787954.

45978786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45978781) and next prime (45978791).

It is a super-2 number, since 2×45978786² = 4228097524067592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (45978781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60441 + ... + 61196.

It is an arithmetic number, because the mean of its divisors is an integer number (3649140).

Almost surely, 2^45978786 is an apocalyptic number.

45978786 is an abundant number, since it is smaller than the sum of its proper divisors (70793694).

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

45978786 is a wasteful number, since it uses less digits than its factorization.

45978786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121655 (or 121649 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 45978786 is about 6780.7658859453. The cubic root of 45978786 is about 358.2496983587.

It can be divided in two parts, 45978 and 786, that added together give a palindrome (46764).

The spelling of 45978786 in words is "forty-five million, nine hundred seventy-eight thousand, seven hundred eighty-six".