733381 has 16 divisors (see below), whose sum is σ = 878400. Its totient is φ = 609840.

The previous prime is 733373. The next prime is 733387. The reversal of 733381 is 183337.

It is not a de Polignac number, because 733381 - 2³ = 733373 is a prime.

It is a super-2 number, since 2×733381² = 1075695382322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733387) 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, 25275 + ... + 25303.

It is an arithmetic number, because the mean of its divisors is an integer number (54900).

2⁷³³³⁸¹ is an apocalyptic number.

It is an amenable number.

733381 is a deficient number, since it is larger than the sum of its proper divisors (145019).

733381 is a wasteful number, since it uses less digits than its factorization.

733381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 59 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 733381 is about 856.3766694627. The cubic root of 733381 is about 90.1799281136.

The spelling of 733381 in words is "seven hundred thirty-three thousand, three hundred eighty-one".