70945272 has 24 divisors (see below), whose sum is σ = 192143640. Its totient is φ = 23648400.

The previous prime is 70945249. The next prime is 70945279. The reversal of 70945272 is 27254907.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70945279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 492604 + ... + 492747.

It is an arithmetic number, because the mean of its divisors is an integer number (8005985).

Almost surely, 2^70945272 is an apocalyptic number.

70945272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70945272 is an abundant number, since it is smaller than the sum of its proper divisors (121198368).

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

70945272 is a wasteful number, since it uses less digits than its factorization.

70945272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985363 (or 985356 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70945272 is about 8422.9016377968. The cubic root of 70945272 is about 413.9753538503.

It can be divided in two parts, 70945 and 272, that added together give a palindrome (71217).

The spelling of 70945272 in words is "seventy million, nine hundred forty-five thousand, two hundred seventy-two".