67400738 has 4 divisors (see below), whose sum is σ = 101101110. Its totient is φ = 33700368.

The previous prime is 67400713. The next prime is 67400743. The reversal of 67400738 is 83700476.

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

It can be written as a sum of positive squares in only one way, i.e., 48539089 + 18861649 = 6967^2 + 4343^2 .

67400738 is a modest number, since divided by 738 gives 674 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 67400698 and 67400707.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16850183 + ... + 16850186.

Almost surely, 2^67400738 is an apocalyptic number.

67400738 is a deficient number, since it is larger than the sum of its proper divisors (33700372).

67400738 is a wasteful number, since it uses less digits than its factorization.

67400738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33700371.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 67400738 is about 8209.7952471423. The cubic root of 67400738 is about 406.9629604866.

The spelling of 67400738 in words is "sixty-seven million, four hundred thousand, seven hundred thirty-eight".