70943040 has 560 divisors, whose sum is σ = 318650112. Its totient is φ = 14598144.

The previous prime is 70943039. The next prime is 70943071. The reversal of 70943040 is 4034907.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 70942995 and 70943013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3084469 + ... + 3084491.

Almost surely, 2^70943040 is an apocalyptic number.

70943040 is a gapful number since it is divisible by the number (70) 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 70943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159325056).

70943040 is an abundant number, since it is smaller than the sum of its proper divisors (247707072).

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

70943040 is a wasteful number, since it uses less digits than its factorization.

70943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70943040 is about 8422.7691408467. The cubic root of 70943040 is about 413.9710124631.

Adding to 70943040 its reverse (4034907), we get a palindrome (74977947).

The spelling of 70943040 in words is "seventy million, nine hundred forty-three thousand, forty".