70400734 has 4 divisors (see below), whose sum is σ = 105601104. Its totient is φ = 35200366.

The previous prime is 70400713. The next prime is 70400741. The reversal of 70400734 is 43700407.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 70400699 and 70400708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17600182 + ... + 17600185.

It is an arithmetic number, because the mean of its divisors is an integer number (26400276).

Almost surely, 2^70400734 is an apocalyptic number.

70400734 is a deficient number, since it is larger than the sum of its proper divisors (35200370).

70400734 is a wasteful number, since it uses less digits than its factorization.

70400734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35200369.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 70400734 is about 8390.5145253435. The cubic root of 70400734 is about 412.9134812033.

The spelling of 70400734 in words is "seventy million, four hundred thousand, seven hundred thirty-four".