70040740 has 48 divisors (see below), whose sum is σ = 183383424. Its totient is φ = 21830400.

The previous prime is 70040701. The next prime is 70040743. The reversal of 70040740 is 4704007.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (70040743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21201 + ... + 24280.

It is an arithmetic number, because the mean of its divisors is an integer number (3820488).

Almost surely, 2^70040740 is an apocalyptic number.

70040740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70040740 is an abundant number, since it is smaller than the sum of its proper divisors (113342684).

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

70040740 is a wasteful number, since it uses less digits than its factorization.

70040740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45508 (or 45506 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 70040740 is about 8369.0345918750. The cubic root of 70040740 is about 412.2084674098.

Adding to 70040740 its reverse (4704007), we get a palindrome (74744747).

The spelling of 70040740 in words is "seventy million, forty thousand, seven hundred forty".