70448444 has 48 divisors (see below), whose sum is σ = 139745760. Its totient is φ = 30792960.

The previous prime is 70448393. The next prime is 70448489. The reversal of 70448444 is 44484407.

It is a happy number.

It is a super-2 number, since 2×70448444² = 9925966524042272, which contains 22 as substring.

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, 177254 + ... + 177650.

It is an arithmetic number, because the mean of its divisors is an integer number (2911370).

Almost surely, 2^70448444 is an apocalyptic number.

70448444 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

70448444 is a deficient number, since it is larger than the sum of its proper divisors (69297316).

70448444 is a wasteful number, since it uses less digits than its factorization.

70448444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 35.

The square root of 70448444 is about 8393.3571352588. The cubic root of 70448444 is about 413.0067361669.

The spelling of 70448444 in words is "seventy million, four hundred forty-eight thousand, four hundred forty-four".