45078829 has 4 divisors (see below), whose sum is σ = 45100384. Its totient is φ = 45057276.

The previous prime is 45078821. The next prime is 45078851. The reversal of 45078829 is 92887054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45078829 - 2³ = 45078821 is a prime.

It is a super-2 number, since 2×45078829² = 4064201648022482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45078821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7257 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (11275096).

Almost surely, 2^45078829 is an apocalyptic number.

It is an amenable number.

45078829 is a deficient number, since it is larger than the sum of its proper divisors (21555).

45078829 is a wasteful number, since it uses less digits than its factorization.

45078829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21554.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 45078829 is about 6714.0769283648. The cubic root of 45078829 is about 355.8969028777.

The spelling of 45078829 in words is "forty-five million, seventy-eight thousand, eight hundred twenty-nine".