70537240 has 16 divisors (see below), whose sum is σ = 158708880. Its totient is φ = 28214880.

The previous prime is 70537237. The next prime is 70537249. The reversal of 70537240 is 4273507.

It is a junction number, because it is equal to n+sod(n) for n = 70537199 and 70537208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70537249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881676 + ... + 881755.

It is an arithmetic number, because the mean of its divisors is an integer number (9919305).

Almost surely, 2^70537240 is an apocalyptic number.

It is an amenable number.

70537240 is an abundant number, since it is smaller than the sum of its proper divisors (88171640).

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

70537240 is a wasteful number, since it uses less digits than its factorization.

70537240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763442 (or 1763438 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 70537240 is about 8398.6451288288. The cubic root of 70537240 is about 413.1801866444.

The spelling of 70537240 in words is "seventy million, five hundred thirty-seven thousand, two hundred forty".