70121424 has 20 divisors (see below), whose sum is σ = 181147136. Its totient is φ = 23373792.

The previous prime is 70121423. The next prime is 70121437. The reversal of 70121424 is 42412107.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70121424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70121423) 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, 730384 + ... + 730479.

Almost surely, 2^70121424 is an apocalyptic number.

It is an amenable number.

70121424 is an abundant number, since it is smaller than the sum of its proper divisors (111025712).

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

70121424 is a wasteful number, since it uses less digits than its factorization.

70121424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460874 (or 1460868 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 70121424 is about 8373.8535931792. The cubic root of 70121424 is about 412.3666889692.

The spelling of 70121424 in words is "seventy million, one hundred twenty-one thousand, four hundred twenty-four".