400733738 has 8 divisors (see below), whose sum is σ = 627235488. Its totient is φ = 191655244.

The previous prime is 400733737. The next prime is 400733771. The reversal of 400733738 is 837337004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400733698 and 400733707.

It is not an unprimeable number, because it can be changed into a prime (400733737) 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, 4355756 + ... + 4355847.

It is an arithmetic number, because the mean of its divisors is an integer number (78404436).

Almost surely, 2^400733738 is an apocalyptic number.

400733738 is a deficient number, since it is larger than the sum of its proper divisors (226501750).

400733738 is a wasteful number, since it uses less digits than its factorization.

400733738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711628.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 400733738 is about 20018.3350456525. The cubic root of 400733738 is about 737.2565435233.

The spelling of 400733738 in words is "four hundred million, seven hundred thirty-three thousand, seven hundred thirty-eight".