69420445 has 16 divisors (see below), whose sum is σ = 85434480. Its totient is φ = 54134784.

The previous prime is 69420427. The next prime is 69420451. The reversal of 69420445 is 54402496.

It can be written as a sum of positive squares in 8 ways, for example, as 15280281 + 54140164 = 3909^2 + 7358^2 .

It is not a de Polignac number, because 69420445 - 2⁵ = 69420413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69420445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31417 + ... + 33553.

It is an arithmetic number, because the mean of its divisors is an integer number (5339655).

Almost surely, 2^69420445 is an apocalyptic number.

It is an amenable number.

69420445 is a deficient number, since it is larger than the sum of its proper divisors (16014035).

69420445 is a wasteful number, since it uses less digits than its factorization.

69420445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 69420445 is about 8331.8932422349. The cubic root of 69420445 is about 410.9879900904.

The spelling of 69420445 in words is "sixty-nine million, four hundred twenty thousand, four hundred forty-five".