70452144 has 120 divisors (see below), whose sum is σ = 231547680. Its totient is φ = 19574784.

The previous prime is 70452139. The next prime is 70452149. The reversal of 70452144 is 44125407.

70452144 is a `hidden beast` number, since 70 + 452 + 144 = 666.

It is an interprime number because it is at equal distance from previous prime (70452139) and next prime (70452149).

It is not an unprimeable number, because it can be changed into a prime (70452149) 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, 36352 + ... + 38240.

It is an arithmetic number, because the mean of its divisors is an integer number (1929564).

Almost surely, 2^70452144 is an apocalyptic number.

70452144 is a gapful number since it is divisible by the number (74) 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 70452144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115773840).

70452144 is an abundant number, since it is smaller than the sum of its proper divisors (161095536).

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

70452144 is a wasteful number, since it uses less digits than its factorization.

70452144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 70452144 is about 8393.5775447660. The cubic root of 70452144 is about 413.0139665049.

The spelling of 70452144 in words is "seventy million, four hundred fifty-two thousand, one hundred forty-four".