70345940 has 48 divisors (see below), whose sum is σ = 169344000. Its totient is φ = 24045312.

The previous prime is 70345927. The next prime is 70345943. The reversal of 70345940 is 4954307.

It is a junction number, because it is equal to n+sod(n) for n = 70345897 and 70345906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70345943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66536 + ... + 67584.

It is an arithmetic number, because the mean of its divisors is an integer number (3528000).

Almost surely, 2^70345940 is an apocalyptic number.

70345940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70345940 is an abundant number, since it is smaller than the sum of its proper divisors (98998060).

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

70345940 is a wasteful number, since it uses less digits than its factorization.

70345940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 70345940 is about 8387.2486549523. The cubic root of 70345940 is about 412.8063277103.

The spelling of 70345940 in words is "seventy million, three hundred forty-five thousand, nine hundred forty".