70449552 has 120 divisors (see below), whose sum is σ = 208915200. Its totient is φ = 22116864.

The previous prime is 70449551. The next prime is 70449553. The reversal of 70449552 is 25594407.

It is an interprime number because it is at equal distance from previous prime (70449551) and next prime (70449553).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70449551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294649 + ... + 294887.

It is an arithmetic number, because the mean of its divisors is an integer number (1740960).

Almost surely, 2^70449552 is an apocalyptic number.

70449552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70449552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104457600).

70449552 is an abundant number, since it is smaller than the sum of its proper divisors (138465648).

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

70449552 is a wasteful number, since it uses less digits than its factorization.

70449552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 70449552 is about 8393.4231395778. The cubic root of 70449552 is about 413.0089013866.

The spelling of 70449552 in words is "seventy million, four hundred forty-nine thousand, five hundred fifty-two".