45401866 has 8 divisors (see below), whose sum is σ = 72108900. Its totient is φ = 21365568.

The previous prime is 45401833. The next prime is 45401897. The reversal of 45401866 is 66810454.

It can be written as a sum of positive squares in 2 ways, for example, as 38750625 + 6651241 = 6225^2 + 2579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×45401866² = 4122658872563912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1335349 = 45401866 / (4 + 5 + 4 + 0 + 1 + 8 + 6 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667641 + ... + 667708.

Almost surely, 2^45401866 is an apocalyptic number.

45401866 is a deficient number, since it is larger than the sum of its proper divisors (26707034).

45401866 is a wasteful number, since it uses less digits than its factorization.

45401866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335368.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 45401866 is about 6738.0906791167. The cubic root of 45401866 is about 356.7450048711.

The spelling of 45401866 in words is "forty-five million, four hundred one thousand, eight hundred sixty-six".